Arithmetic Starters:
![5.5 Times Table](/Software/SW/Starter_of_the_day/Thumbs/324x200/July7.png)
Write out the 5.5 times table as far as possible.
![A Thousand and One](/Software/SW/Starter_of_the_day/Thumbs/324x200/June8.png)
Develop a quick way of mentally multiplying any number by 1001.
![Abundant Buses](/Software/SW/Starter_of_the_day/Thumbs/324x200/April28.png)
A game based around the concept of factors and abundant numbers.
![Add Quickulations](/Software/SW/Starter_of_the_day/Thumbs/324x200/February12.png)
Calculations appear on the screen every few seconds. This mental arithmetic starter provides pace to the start of the Maths lesson.
![Addle](/Software/SW/Starter_of_the_day/Thumbs/324x200/July13.png)
Arrange the numbers 1 to 14 in the circles so that the sums are correct.
![All for 100](/Software/SW/Starter_of_the_day/Thumbs/324x200/October6.png)
Can you write an expression for 100 which uses all the digits 1 to 9?
![All The Nines](/Software/SW/Starter_of_the_day/Thumbs/324x200/January18.png)
Add up all the multiples of nine in an elegant way.
![Arithmagons](/Software/SW/Starter_of_the_day/Thumbs/324x200/August20.png)
This lesson starter requires pupils to find the missing numbers in this partly completed arithmagon puzzle.
![Aunt Sophie's Post Office](/Software/SW/Starter_of_the_day/Thumbs/324x200/July8.png)
Work out the number of stamps needed to post a parcel.
![Balloon Bursting Buttons](/Software/SW/Starter_of_the_day/Thumbs/324x200/September28.png)
Use only the 1, 5 and 0 keys on a calculator to make given totals.
![Big Order](/Software/SW/Starter_of_the_day/Thumbs/324x200/September30.png)
Estimate or calculate then put the large numbers in order of size.
![Blots](/Software/SW/Starter_of_the_day/Thumbs/324x200/November30.png)
The calculations are obscured by ink blots. What do you think the calculations would look like if there were no blots?
![Broken Calculator (2 and 3)](/Software/SW/Starter_of_the_day/Thumbs/324x200/January5.png)
Make the numbers 1 to 10 using only the keys on the broken calculator.
![Broken Calculator (3 and 4)](/Software/SW/Starter_of_the_day/Thumbs/324x200/September5.png)
Some keys are missing from this calculator. Just how useful is it?
![Broken Calculator (4 and 5)](/Software/SW/Starter_of_the_day/Thumbs/324x200/May5.png)
Which numbers can be made with the buttons which have not yet dropped off this calculator?
![Calc-A-Hundred](/Software/SW/Starter_of_the_day/Thumbs/324x200/October5.png)
A game for two players requiring a calculator and thinking skills.
![Calculator Nim](/Software/SW/Starter_of_the_day/Thumbs/324x200/November14.png)
A game in which players take turns to add a single-digit number to what is already in the calculator. The winner is the player who makes the display show 30.
![ClockEquate](/Software/SW/Starter_of_the_day/Thumbs/324x200/June14.png)
Can you use the digits on the left of this clock along with any mathematical operations to equal the digits on the right?
![Clouds](/Software/SW/Starter_of_the_day/Thumbs/324x200/March30.png)
Some calculations are partly obscured. Work out what those calculations might be.
![Consecutive](/Software/SW/Starter_of_the_day/Thumbs/324x200/September20.png)
Three consecutive numbers multiplied together give a given product. Pupils are asked to figure out what the numbers are.
![Consecy Brothers](/Software/SW/Starter_of_the_day/Thumbs/324x200/January20.png)
Which three consecutive numbers multiplied together give the given answer.
![Countdown](/Software/SW/Starter_of_the_day/Thumbs/324x200/November2.png)
How close can you get to the target by making a calculation from the five numbers given?
![Cracked Clock](/Software/SW/Starter_of_the_day/Thumbs/324x200/May24.png)
How did the clock break if the numbers on each of the pieces added up to the same total?
![Cracker Joke](/Software/SW/Starter_of_the_day/Thumbs/324x200/December15.png)
Answer the mental arithmetic questions then convert the answers to letters to find the joke.
![Cunning Code](/Software/SW/Starter_of_the_day/Thumbs/324x200/June21.png)
Decode the message by doing the calculations given for each letter.
![Digivide](/Software/SW/Starter_of_the_day/Thumbs/324x200/September3.png)
Arrange the digits 1 to 6 to make a three digit number divided by a two digit number giving a one digit answer.
![Dimidiate](/Software/SW/Starter_of_the_day/Thumbs/324x200/May2.png)
Arrange the digits from 1 to 9 in alphabetical order. How many times can this number be halved?
![Division Quickulations](/Software/SW/Starter_of_the_day/Thumbs/324x200/July24.png)
Random division calculations appear on screen every few seconds.
![Double Trouble](/Software/SW/Starter_of_the_day/Thumbs/324x200/March4.png)
Begin with one, double it, double it again and so on. How many numbers in this sequence can you write down before the register has been called?
![Eleventh of the Eleventh](/Software/SW/Starter_of_the_day/Thumbs/324x200/November11.png)
Practise multiplying and dividing by eleven in your head.
![Faulty Button](/Software/SW/Starter_of_the_day/Thumbs/324x200/February11.png)
Find out which of the calculator keys is faulty from the given information. A mathematical puzzle requiring good problem solving strategies.
![Firewords](/Software/SW/Starter_of_the_day/Thumbs/324x200/November5.png)
Find words which cost 100p if A costs 1p, B costs 2p etc
![Flabbergasted](/Software/SW/Starter_of_the_day/Thumbs/324x200/May7.png)
If each number in a sequence must be a factor or multiple of the previous number what is the longest sequence that can be made from the given numbers?
![Flowchart](/Software/SW/Starter_of_the_day/Thumbs/324x200/October13.png)
Use the flowchart to generate a sequence of numbers. Which number will reach 1 the fastest?
![Fly Catching](/Software/SW/Starter_of_the_day/Thumbs/324x200/November6.png)
Find which whole number divided by another whole number gives the answer: 1.090909091
![For Starters](/Software/SW/Starter_of_the_day/Thumbs/324x200/March23.png)
Four problems involving addition, subtraction, multiplication and division
![For Thought](/Software/SW/Starter_of_the_day/Thumbs/324x200/November23.png)
Add up the answers to the four real life questions.
![Four Gone](/Software/SW/Starter_of_the_day/Thumbs/324x200/June2.png)
An activity involving a broken calculator which is missing the four button. Can you evaluate the given expressions without using the four?
![Four Make 999](/Software/SW/Starter_of_the_day/Thumbs/324x200/August24.png)
Find four numbers from those given that add up to 999. How many different sets of four numbers can be found?
![Four Problems](/Software/SW/Starter_of_the_day/Thumbs/324x200/August22.png)
For mathematical questions to get everyone thinking at the beginning of the lesson.
![Four to Seven](/Software/SW/Starter_of_the_day/Thumbs/324x200/April15.png)
Which of the numbers from one to twenty can you make with the digits 4, 5, 6 and 7?
![Four's Independence](/Software/SW/Starter_of_the_day/Thumbs/324x200/July4.png)
A clock face containing only the number 4. Can you make a clock face containing any other single number?
![Half a Dozen](/Software/SW/Starter_of_the_day/Thumbs/324x200/November10.png)
Six calculations to complete without a calculator.
![Half a Pound](/Software/SW/Starter_of_the_day/Thumbs/324x200/March5.png)
If A costs 1p, B costs 2p, etc can you find a word which costs exactly 50p?
![Half and Half](/Software/SW/Starter_of_the_day/Thumbs/324x200/July9.png)
Start with 100. Halve it to get 50. Halve that to get 25. Continue as far as possible.
![Halve it](/Software/SW/Starter_of_the_day/Thumbs/324x200/March9.png)
Start with 512. Halve it to get 256. Halve it to get 128. Continue as far as possible.
![Happy Numbers](/Software/SW/Starter_of_the_day/Thumbs/324x200/January25.png)
To find out whether a number is happy or not, square each of its digits, add the answers and repeat. If you end up with 1 the number is happy! How many other happy numbers can you find?
![How Do You Do?](/Software/SW/Starter_of_the_day/Thumbs/324x200/August9.png)
A little lateral thinking will help you solve this number puzzle.
![How many of Each?](/Software/SW/Starter_of_the_day/Thumbs/324x200/November15.png)
Pens cost 12p each, Pencils cost 9p each, Richard spent 72p altogether. How many pens and pencils did he buy?
![Inbetween Table](/Software/SW/Starter_of_the_day/Thumbs/324x200/March7.png)
Write down as many multiples of 3.5 as possible in 3.5 minutes.
![Jeopardy](/Software/SW/Starter_of_the_day/Thumbs/324x200/July1.png)
Loosely based on the famous television show, how many questions cn you come up with for a given answer?
![Justundera Quid](/Software/SW/Starter_of_the_day/Thumbs/324x200/July5.png)
Find a word whose letters would cost exactly ninety nine pence.
![Khmer's Homework](/Software/SW/Starter_of_the_day/Thumbs/324x200/April17.png)
Check a student's homework. If you find any of the answers are wrong write down a sentence or two explaining what he did wrong.
![Know Weigh](/Software/SW/Starter_of_the_day/Thumbs/324x200/June18.png)
Find the weight of one cuboid (by division) of each colour then add your answers together.
![Letter Clue Calculations](/Software/SW/Starter_of_the_day/Thumbs/324x200/December28.png)
Work out what the calculations might be from the letter clues.
![Maggots](/Software/SW/Starter_of_the_day/Thumbs/324x200/February28.png)
Do as many of the calculations as possible before the maggots infest!
![Magic Square](/Software/SW/Starter_of_the_day/Thumbs/324x200/May14.png)
Arrange the numbers 1 to 9 in a 3 by 3 grid to form a magic square.
![May Day](/Software/SW/Starter_of_the_day/Thumbs/324x200/May1.png)
Add together the dates of all the Thursdays in May this year. Which day sum is largest?
![Mental Maths Quiz](/Software/SW/Starter_of_the_day/Thumbs/324x200/January27.png)
A traditional twenty question mental arithmetic test presented as a PowerPoint presentation.
![Mental Maths Test](/Software/SW/Starter_of_the_day/Thumbs/324x200/September27.png)
The starter is a PowerPoint file containing a twenty question mental arithmetic test. It will advance from one question to the next automatically.
![Meta Products](/Software/SW/Starter_of_the_day/Thumbs/324x200/February17.png)
Which numbers when multiplied by the number of letters in the word(s) of the number give square numbers?
![Mirror Maths](/Software/SW/Starter_of_the_day/Thumbs/324x200/March10.png)
The bottom half of some symmetrical calculations are shown above. Can you work out the answers?
![Missing digits](/Software/SW/Starter_of_the_day/Thumbs/324x200/December1.png)
Find which digits are missing from the randomly generated calculations.
![Missing Pound](/Software/SW/Starter_of_the_day/Thumbs/324x200/June19.png)
A puzzle about a restaurant bill. Exactly where did the missing pound go?
![Ms Tayke](/Software/SW/Starter_of_the_day/Thumbs/324x200/May18.png)
How many times can you take one number from another?
![Multi-Toil Panic](/Software/SW/Starter_of_the_day/Thumbs/324x200/February23.png)
Copy and complete the multiplication grid. The higher levels include negative numbers.
![Multiply Quickulations](/Software/SW/Starter_of_the_day/Thumbs/324x200/November24.png)
Random multiplications appear on screen every few seconds.
![Nine Digit Sum](/Software/SW/Starter_of_the_day/Thumbs/324x200/July2.png)
Arrange the digits one to nine to make a correct addition calculation.
![Nine Nine Nine](/Software/SW/Starter_of_the_day/Thumbs/324x200/April4.png)
Arrange the numbers 1-9 to make three 3 digit numbers that add up to 999.
![No Partner](/Software/SW/Starter_of_the_day/Thumbs/324x200/August30.png)
Find which numbers in a given list do not combine with other numbers on the list to make a given sum.
![Noodlewhack](/Software/SW/Starter_of_the_day/Thumbs/324x200/January3.png)
Divide one whole number by another on your calculator. If the answer has one digit repeated but no other digits you have a Noodlewhack.
![On The Double](/Software/SW/Starter_of_the_day/Thumbs/324x200/September7.png)
Double the numbers given in the table.
![One Digit 100](/Software/SW/Starter_of_the_day/Thumbs/324x200/October4.png)
How many ways can you write an expression for 100 which only uses the same digit repeated and any operations?
![Only One Number](/Software/SW/Starter_of_the_day/Thumbs/324x200/March15.png)
Find other numbers that can be changed to 1 on a calculator using only the 4 key and any operation.
![Outnumbered](/Software/SW/Starter_of_the_day/Thumbs/324x200/July3.png)
Which group of four numbers, arranged in a square, has the largest total?
![Pears Make Squares](/Software/SW/Starter_of_the_day/Thumbs/324x200/January8.png)
Find three numbers such that each pair of numbers adds up to a square number.
![Pentadd](/Software/SW/Starter_of_the_day/Thumbs/324x200/January21.png)
Five numbers are added together in pairs and the sums shown. What might the five numbers be?
![PercenTable](/Software/SW/Starter_of_the_day/Thumbs/324x200/October16.png)
Complete the table by calculating common percentages without using a calculator.
![Pipeline Puzzle](/Software/SW/Starter_of_the_day/Thumbs/324x200/February1.png)
Arrange the numbers so that the totals of the three numbers along any pipe are the same.
![Plane Numbers](/Software/SW/Starter_of_the_day/Thumbs/324x200/February3.png)
Arrange numbers on the plane shaped grid to produce the given totals
![Planet Numpair](/Software/SW/Starter_of_the_day/Thumbs/324x200/August3.png)
The sum and product are given, can you find the two numbers?
![Plant More Trees](/Software/SW/Starter_of_the_day/Thumbs/324x200/March19.png)
If six girls can plant 90 trees in a day. How many trees can ten girls plant in a day? The unitary method.
![Plus](/Software/SW/Starter_of_the_day/Thumbs/324x200/June3.png)
A number puzzle suitable for children with a wide range of abilities.
![Plus Four](/Software/SW/Starter_of_the_day/Thumbs/324x200/November19.png)
Work out the answers to the four given sums then add the answers together.
![Positions Please](/Software/SW/Starter_of_the_day/Thumbs/324x200/July19.png)
Stand at the point between the classroom walls to represent a given number.
![Product Practice](/Software/SW/Starter_of_the_day/Thumbs/324x200/March21.png)
Work out the answers to the given calculations then add the answers together. There are three different levels of difficulty.
![Puddings](/Software/SW/Starter_of_the_day/Thumbs/324x200/December22.png)
Complete the calculations with the weights of the puddings
![Pyramid Puzzle](/Software/SW/Starter_of_the_day/Thumbs/324x200/January4.png)
Arrange numbers at the bottom of the pyramid which will give the largest total at the top.
![Quotients](/Software/SW/Starter_of_the_day/Thumbs/324x200/July22.png)
Work out the answers to the given division calculations then add the answers together.
![Recurring Decimal](/Software/SW/Starter_of_the_day/Thumbs/324x200/July6.png)
Use your calculator to find which whole number divided by another whole number gives a recurring decimal.
![Refreshing Revision](/Software/SW/Starter_of_the_day/Thumbs/324x200/April9.png)
It is called Refreshing Revision because every time you refresh the page you get different revision questions.
![Render Digitful](/Software/SW/Starter_of_the_day/Thumbs/324x200/June6.png)
Find a calculation for the current year which uses all of the digits 1 to 9.
![Roman Numerals](/Software/SW/Starter_of_the_day/Thumbs/324x200/October25.png)
Learn a very different method for writing numbers using Roman numerals.
![Roundabout](/Software/SW/Starter_of_the_day/Thumbs/324x200/January24.png)
Go around the roundabout performing each of the operations. Which starting point gives the largest answer?
![Rounding 1dp](/Software/SW/Starter_of_the_day/Thumbs/324x200/February20.png)
Round off the given numbers to 1 decimal place then add the answers together.
![Rounding 2dp](/Software/SW/Starter_of_the_day/Thumbs/324x200/June20.png)
Round off the given numbers to 2 decimal places then add the answers together.
![Rounding Whole](/Software/SW/Starter_of_the_day/Thumbs/324x200/October20.png)
Round off the given numbers to the nearest whole number then add the answers together.
![Route to Las Vegas](/Software/SW/Starter_of_the_day/Thumbs/324x200/November20.png)
Work out the cheapest way from Los Angeles to Las Vegas by choosing the best route and adding up the given numbers.
![Scaramouche](/Software/SW/Starter_of_the_day/Thumbs/324x200/June25.png)
Can you work out from the five clues given what the mystery number is?
![Second Holiday](/Software/SW/Starter_of_the_day/Thumbs/324x200/August27.png)
Estimate then work out the period of time equal to the given number of seconds.
![Shadow Sums](/Software/SW/Starter_of_the_day/Thumbs/324x200/November13.png)
Make sums from the three digit numbers given.
![Sid's Schemes](/Software/SW/Starter_of_the_day/Thumbs/324x200/July23.png)
Work out which is the best scheme for Sid to choose for his summer bonus. One scheme involves a common misconception about percentages.
![Sign Sequences](/Software/SW/Starter_of_the_day/Thumbs/324x200/June22.png)
Continue the sequences if you can work out the rule.
![Six Discrimination](/Software/SW/Starter_of_the_day/Thumbs/324x200/October2.png)
An activity involving a calculator which is missing the six button. Can you evaluate the given expressions without using the six?
![Six of the Best](/Software/SW/Starter_of_the_day/Thumbs/324x200/July10.png)
Six calculations to perform without a calculator.
![Spinsum](/Software/SW/Starter_of_the_day/Thumbs/324x200/April8.png)
Arrange the numbers on the grid of squares so that the totals along each line of three squares are equal.
![Square Pairs](/Software/SW/Starter_of_the_day/Thumbs/324x200/March20.png)
Arrange the numbered trees so that adjacent sums are square numbers.
![Square Thinkers](/Software/SW/Starter_of_the_day/Thumbs/324x200/December5.png)
Can you find three square numbers where the third is the sum of the first two?
![Stacks of Sums](/Software/SW/Starter_of_the_day/Thumbs/324x200/August16.png)
Write down many different types
of calculations which give a particular answer.
![Stencils](/Software/SW/Starter_of_the_day/Thumbs/324x200/February24.png)
Which of the coloured stencils will fit over the numbered card to produce correct calculations?
![Strange Tables](/Software/SW/Starter_of_the_day/Thumbs/324x200/September8.png)
A challenge to learn an unfamiliar times table involving decimals.
![Student Loans](/Software/SW/Starter_of_the_day/Thumbs/324x200/July15.png)
Six students borrow £5000 to help pay for their university course. Calculate how much each student will have to pay back to the lender.
![Subtract Quickulations](/Software/SW/Starter_of_the_day/Thumbs/324x200/October12.png)
Calculations appear on the screen every few seconds.
![Sudoku Sum](/Software/SW/Starter_of_the_day/Thumbs/324x200/April22.png)
What is the sum of the numbers missing from the given Sudoku puzzle?
![Sum Square](/Software/SW/Starter_of_the_day/Thumbs/324x200/April27.png)
Arrange the numbers one to eight into the calculations to make the totals correct..
![Sum Story](/Software/SW/Starter_of_the_day/Thumbs/324x200/May9.png)
Make up real life stories for the given calculations.
![Table Legs](/Software/SW/Starter_of_the_day/Thumbs/324x200/May8.png)
Learn an unusual times table from the strategic finger moving up and down the 'Table Leg'!
![Targets](/Software/SW/Starter_of_the_day/Thumbs/324x200/April5.png)
Use the given numbers to produce a calculation to get as close as possible to the given target.
![Tasty Take-Aways](/Software/SW/Starter_of_the_day/Thumbs/324x200/July20.png)
Four subtractions to be done without a calculator. The answers are then to be added together.
![Team Age](/Software/SW/Starter_of_the_day/Thumbs/324x200/October8.png)
Work out who is in which team from the information given.
![Three Make 1000](/Software/SW/Starter_of_the_day/Thumbs/324x200/April24.png)
Find three numbers from those given that add up to 1000. How many different sets of three numbers can be found?
![Three Wise Gifts](/Software/SW/Starter_of_the_day/Thumbs/324x200/December10.png)
Find as many sets of three of the available numbers as possible which add up to the given total.
![Ticker News](/Software/SW/Starter_of_the_day/Thumbs/324x200/May20.png)
A Think Of A Number problem presented as a news ticker.
![Time Trials](/Software/SW/Starter_of_the_day/Thumbs/324x200/March24.png)
You have 10 seconds to answer each of the mental arithmetic questions.
![Timed Tables](/Software/SW/Starter_of_the_day/Thumbs/324x200/June11.png)
How fast can you answer 24 mixed times tables questions?
![Tool Triangle](/Software/SW/Starter_of_the_day/Thumbs/324x200/June13.png)
Place the numbers on the triangle so that the totals along each of the sides are equal.
![Triple Totals](/Software/SW/Starter_of_the_day/Thumbs/324x200/March13.png)
Complete the sums using only the given numbers then check your calculations are correct.
![Triplets](/Software/SW/Starter_of_the_day/Thumbs/324x200/April10.png)
Find as many sets of three of the available numbers as possible which add up to the given total.
![Two Numbers](/Software/SW/Starter_of_the_day/Thumbs/324x200/December3.png)
Find the two numbers whose sum and product are given.
![Two Thirds](/Software/SW/Starter_of_the_day/Thumbs/324x200/August31.png)
Make a poster showing a variety of calculations that give the answer two thirds.
![Unmagic Square](/Software/SW/Starter_of_the_day/Thumbs/324x200/September24.png)
Arrange the numbers 1 to 9 in a 3 by 3 grid so that none of the line totals are the same.
![Warm Up](/Software/SW/Starter_of_the_day/Thumbs/324x200/February25.png)
Four quick Maths questions to warm up the brain.
![Weather Report](/Software/SW/Starter_of_the_day/Thumbs/324x200/June12.png)
Find five different integers that multiply together to give a product of twelve.
![What are they?](/Software/SW/Starter_of_the_day/Thumbs/324x200/June4.png)
A starter about sums, products, differences, ratios, square and prime numbers.
![Word Difference](/Software/SW/Starter_of_the_day/Thumbs/324x200/August13.png)
Can you find substitutions which will make the word sum correct?
![Word Sum](/Software/SW/Starter_of_the_day/Thumbs/324x200/April13.png)
Each letter stands for a different digit. Can you make sense of this word sum?
![Wrong Way Round](/Software/SW/Starter_of_the_day/Thumbs/324x200/September6.png)
Find calculations which written back to front give the same answer.
Exercises
![23 or Bust](/Go/Thumbnails324x200/306.gif)
23 or Bust
A game involving mental arithmetic and strategy for two players or one player against the computer.
![Addle](/Go/Thumbnails324x200/261.gif)
Addle
Arrange the numbers from 1 to 14 in the spaces to make the sums correct. How fast can you do it?
![Arithmagons](/Go/Thumbnails324x200/398.gif)
Arithmagons
Find the missing numbers in these triangular, self-checking puzzles and discover the wonders of these fascinating structures.
![Basic Addition](/Go/Thumbnails324x200/221.gif)
Basic Addition
A self-marking exercise on addition with increasing levels of difficulty.
![Basic Division](/Go/Thumbnails324x200/223.gif)
Basic Division
A self-marking exercise on dividing numbers of up to four digits by one or two-digit whole numbers using the formal written methods of short and long division
![Basic Multiplication](/Go/Thumbnails324x200/224.gif)
Basic Multiplication
A self-marking exercise on multiplication with increasing levels of difficulty.
![Basic Subtraction](/Go/Thumbnails324x200/222.gif)
Basic Subtraction
A self-marking exercise on subtraction with increasing levels of difficulty.
![Beat The Clock](/Go/Thumbnails324x200/464.gif)
Beat The Clock
It is a race against the clock to answer 30 mental arithmetic questions. There are nine levels to choose from.
![BIDMAS](/Go/Thumbnails324x200/225.gif)
BIDMAS
A self marking exercise testing the application of BIDMAS, an acronym describing the order of operations used when evaluating expressions.
![BIDMAS Game](/Go/Thumbnails324x200/606.gif)
BIDMAS Game
An online interactive game celebrating the order of mathematical operations.
![Bidmaze](/Go/Thumbnails324x200/635.gif)
Bidmaze
Find your way through the maze encountering mathematical operations in the correct order to achieve the given total.
![Brainbox](/Go/Thumbnails324x200/658.gif)
Brainbox
A puzzle requiring the arrangement of numbers on the function machines to link the given input numbers to the correct output.
![Broken Calculator](/Go/Thumbnails324x200/201.gif)
Broken Calculator
Some of the buttons are missing from this calculator. Can you make the totals from 1 to 20?
![Centexpression](/Go/Thumbnails324x200/280.gif)
Centexpression
Arrange the numbers from 1 to 9 to make an expression with a value of 100.
![Chain Challenge](/Go/Thumbnails324x200/116.gif)
Chain Challenge
How fast can you perform all of the given operations without using a calculator?
![Clouds](/Go/Thumbnails324x200/127.gif)
Clouds
Can you work out which numbers are hidden behind the clouds in these calculations?
![Column Method for Addition](/Go/Thumbnails324x200/989.gif)
Column Method for Addition
Practise your addition skills with this exercise that already has the calculation set out for you.
![Column Method for Multiplication](/Go/Thumbnails324x200/990.gif)
Column Method for Multiplication
Practise your multiplication skills with this exercise that already has the calculation set out for you.
![Countdown](/Go/Thumbnails324x200/51.gif)
Countdown
How close can you get to the target by making a calculation out of the five numbers given?
![Decimal Plus](/Go/Thumbnails324x200/515.gif)
Decimal Plus
Practise mental and written methods for adding and subtracting decimal numbers.
![Decimal Times](/Go/Thumbnails324x200/513.gif)
Decimal Times
Practise mental and written methods for multiplying and dividing decimal numbers.
![Digital Darts](/Go/Thumbnails324x200/609.gif)
Digital Darts
An online darts game for one or two players requiring skill, strategy and mental arithmetic.
![Digivide](/Go/Thumbnails324x200/272.gif)
Digivide
Arrange the numbers from 1 to 6 in the spaces to make the division calculation correct.
![Discombobulated](/Go/Thumbnails324x200/42.gif)
Discombobulated
A fun game requiring you to find numbers which add up to the target number as quickly as possible.
![Divides Exactly](/Go/Thumbnails324x200/819.gif)
Divides Exactly
Find which divisions result in whole number quotients. A mental arithmetic speed challenge.
![Divisibility Tests 2-12](/Go/Thumbnails324x200/824.gif)
Divisibility Tests 2-12
A visual aid designed to be projected in the classroom. Here you can find the quick ways of telling whether a number is exactly divisible by the numbers two to twelve.
![Doubling Quiz](/Go/Thumbnails324x200/197.gif)
Doubling Quiz
Drag the number cards onto their doubles. No calculators or writing allowed.
![Equatero](/Go/Thumbnails324x200/1001.gif)
Equatero
Find the expression from a series of guesses and clues.
![Fast Factors](/Go/Thumbnails324x200/16.gif)
Fast Factors
Match the numbers with the answer to the times table. A timed activity to improve instant recall of key table facts.
![Fifteen](/Go/Thumbnails324x200/327.gif)
Fifteen
A strategy game. Play against the computer to select three numbers that add up to 15.
![Formal Written Methods](/Go/Thumbnails324x200/477.gif)
Formal Written Methods
Examples of formal written methods for addition, subtraction, multiplication and division.
![Four Sum](/Go/Thumbnails324x200/798.gif)
Four Sum
Arrange the given number tiles to make two 2 digit numbers that add up to the given total.
![Furthermore](/Go/Thumbnails324x200/751.gif)
Furthermore
A self-marking exercise on counting forwards or backwards in tens, hundreds, thousands etc.
![Heptaphobia Research](/Go/Thumbnails324x200/711.gif)
Heptaphobia Research
Use written methods to answer ten arithmetic questions. When you have finished you will find the results of this amazing research.
![How Many of Each?](/Go/Thumbnails324x200/64.gif)
How Many of Each?
Work out how many items were bought from the information given.
![Just In Time](/Go/Thumbnails324x200/49.gif)
Just In Time
Every 10 seconds a new calculation appears on the screen: A dynamic visual aid.
![Know Your Place](/Go/Thumbnails324x200/59.gif)
Know Your Place
Without a calculator perform some calculations requiring a knowledge of place value.
![Largest Product](/Go/Thumbnails324x200/24.gif)
Largest Product
A drag and drop activity challenging you to arrange the digits to produce the largest possible product.
![Letter Sums](/Go/Thumbnails324x200/257.gif)
Letter Sums
Use your mental arithmetic skills to add up the values of the letters in these mathematical words.
![Long Division](/Go/Thumbnails324x200/992.gif)
Long Division
Practise long division with this exercise that
already has the calculation set out for you.
![Ludicross](/Go/Thumbnails324x200/587.gif)
Ludicross
Arrange the given numbers on the cross so that the sum of the numbers in both diagonals is the same.
![Magic Square](/Go/Thumbnails324x200/25.gif)
Magic Square
Each row, column and diagonal should produce the same sum.
![Magic Square Puzzle](/Go/Thumbnails324x200/425.gif)
Magic Square Puzzle
Find all of the possible ways of making the magic total from the numbers in this four by four magic square.
![Make 1000](/Go/Thumbnails324x200/139.gif)
Make 1000
Use the numbers on the strange calculator to make a total of 1000
![Make an expression](/Go/Thumbnails324x200/219.gif)
Make an expression
Use the digits given to form an expression equivalent to the given total.
![Masad](/Go/Thumbnails324x200/249.gif)
Masad
For each pair of numbers subtract the sum from the product then divide the result by 20 without a calculator.
![Maths Bingo](/Go/Thumbnails324x200/352.gif)
Maths Bingo
This application will pick the bingo numbers for you and present each of the numbers as a mathematical expression.
![Missing Operations Exercise](/Go/Thumbnails324x200/813.gif)
Missing Operations Exercise
Each box represents a missing operation (add, subtract, multiply or divide). What are they?
![Mixpressions](/Go/Thumbnails324x200/247.gif)
Mixpressions
Arrange the cards to create a valid mathematical statement.
![Multi-step Problems](/Go/Thumbnails324x200/508.gif)
Multi-step Problems
Solve multi-step problems in contexts, deciding which operations and methods to use and why.
![Multitude](/Go/Thumbnails324x200/761.gif)
Multitude
Arrange the given digits to make three numbers such that the third is the product of the first and the second.
![Nine Digits](/Go/Thumbnails324x200/752.gif)
Nine Digits
Arrange the given digits to make three numbers such that two of them add up to the third.
![Nine Nine Nine](/Go/Thumbnails324x200/18.gif)
Nine Nine Nine
Use the digits 1 to 9 to make three 3 digit numbers which add up to 999.
![No Partner](/Go/Thumbnails324x200/173.gif)
No Partner
Find which numbers in a given list do not combine with other numbers on the list to make a given sum.
![Numbasics](/Go/Thumbnails324x200/825.gif)
Numbasics
A daily workout strengthening your ability to do the basic mathematical operations efficiently.
![Number Skills Inventory](/Go/Thumbnails324x200/442.gif)
Number Skills Inventory
A checklist of basic numeracy techniques that every pupil should know.
![Numerate](/Go/Thumbnails324x200/571.gif)
Numerate
Earn points by creating equations on the grid in this game of equations.
![Numskull](/Go/Thumbnails324x200/470.gif)
Numskull
Interactive, randomly-generated, number-based logic puzzle designed to develop numeracy skills.
![One Digit Only](/Go/Thumbnails324x200/281.gif)
One Digit Only
Find expressions using only one digit which equal the given targets.
![Palindrome Products](/Go/Thumbnails324x200/1043.gif)
Palindrome Products
Use long multiplication and pattern spotting to fill in the table with palindromic products.
![Partial Pyramids](/Go/Thumbnails324x200/891.gif)
Partial Pyramids
Calculate the missing numbers in these partly completed pyramid puzzles.
![Partition Clues](/Go/Thumbnails324x200/240.gif)
Partition Clues
Partition numbers in different ways according to the clues given. The higher levels are quite hard!
![Pentadd Quiz](/Go/Thumbnails324x200/2.gif)
Pentadd Quiz
Find the five numbers which when added or multiplied together in pairs to produce the given sums or products.
![Pentransum](/Go/Thumbnails324x200/70.gif)
Pentransum
Mathematical questions with five possible answers. If you get 20 correct you can add your own question to the database.
![Perfect Magic Square](/Go/Thumbnails324x200/849.gif)
Perfect Magic Square
Arrange the sixteen numbers on the four by four grid so that groups of four numbers in a pattern add up to the same total.
![Pick Up Sticks](/Go/Thumbnails324x200/741.gif)
Pick Up Sticks
If you were to pick up the sticks from this pile so that you were always removing the top stick what calculation would you create?
![Plane Numbers](/Go/Thumbnails324x200/6.gif)
Plane Numbers
Arrange numbers on the plane shaped grid to produce the given totals
![Plus](/Go/Thumbnails324x200/29.gif)
Plus
A number arranging puzzle with seven levels of challenge.
![Powten](/Go/Thumbnails324x200/483.gif)
Powten
Practise multiplying and dividing by powers of ten without using a calculator.
![Pyramid Puzzle](/Go/Thumbnails324x200/291.gif)
Pyramid Puzzle
Numbers in the bricks are found by adding the two bricks immediately below together. Can you achieve the given target?
![Quick](/Go/Thumbnails324x200/227.gif)
Quick
Can you multiply a number by 1001 in your head? This exercise provides practice in this and other similar challenges.
![Quickulations](/Go/Thumbnails324x200/266.gif)
Quickulations
A mental arithmetic visual aid that displays random calculations then after a few seconds displays the answers.
![Remainder Race](/Go/Thumbnails324x200/750.gif)
Remainder Race
A game involving chance and choice requiring an ability to calculate the remainder when a two digit number is divided by a single digit number.
![Roman Numerals Quiz](/Go/Thumbnails324x200/309.gif)
Roman Numerals Quiz
This online, self marking quiz tests your ability to convert Roman numerals.
![Short Division](/Go/Thumbnails324x200/991.gif)
Short Division
Practise short division with this exercise that
already has the calculation set out for you.
![Six Discrimination](/Go/Thumbnails324x200/34.gif)
Six Discrimination
The six button has dropped off! How could these calculations be done using this calculator?
![Six Keys](/Go/Thumbnails324x200/138.gif)
Six Keys
Use just six keys on your calculator to make a given total. How many different ways can it be done?
![Spinsum](/Go/Thumbnails324x200/133.gif)
Spinsum
Arrange the numbers on the squares so that the totals along each line of three squares are equal.
![Stamp Sticking](/Go/Thumbnails324x200/259.gif)
Stamp Sticking
Drag stamps onto the envelopes to make the exact postage as shown at the top left of each envelope.
![Standard Form](/Go/Thumbnails324x200/226.gif)
Standard Form
Test your understanding of standard form (scientific notation) with this self-marking quiz.
![Stepwise Sums](/Go/Thumbnails324x200/392.gif)
Stepwise Sums
Arrange the numbers one to nine on the stairs to obtain the given sums.
![Suko Sujiko](/Go/Thumbnails324x200/463.gif)
Suko Sujiko
Interactive number-based logic puzzles similar to those featuring in daily newspapers.
![Sum Game](/Go/Thumbnails324x200/354.gif)
Sum Game
A game against the clock to find the numbers which add up to the target number.
![Sum of Three Palindromes](/Go/Thumbnails324x200/1039.gif)
Sum of Three Palindromes
Every whole number can be expressed as the sum of three palindromic numbers like this...
![TablesMaster](/Go/Thumbnails324x200/8.gif)
TablesMaster
How fast can you answer times table questions? This activity provides feedback to help you improve.
![The Miller's Puzzle](/Go/Thumbnails324x200/344.gif)
The Miller's Puzzle
This is an interactive version of the puzzle described by Henry Ernest Dudeney in The Canterbury Puzzles
![Think of a Number](/Go/Thumbnails324x200/58.gif)
Think of a Number
Ten students think of a number then perform various operations on that number. You have to find what the original numbers were.
![Times Tables](/Go/Thumbnails324x200/47.gif)
Times Tables
A collection of activities to help you learn your times tables in only 5 days.
![Tools](/Go/Thumbnails324x200/50.gif)
Tools
In how many different ways can the numbers be arranged to give the same totals?
![Triplets](/Go/Thumbnails324x200/207.gif)
Triplets
Find as many sets of three of the available numbers as possible which add up to the given total.
![Tug of War](/Go/Thumbnails324x200/638.gif)
Tug of War
A game for two players or teams testing their speedy reactions to mental arithmetic questions.
![Unmagic Square](/Go/Thumbnails324x200/26.gif)
Unmagic Square
Like the magic square but all of the totals should be different.
![Which Operation?](/Go/Thumbnails324x200/878.gif)
Which Operation?
Decide which mathematical operation is required then use it to find the answers.
![Word Sums Guide](/Go/Thumbnails324x200/488.gif)
Word Sums Guide
A step by step guide showing how to solve a Word Sum where each letter stands for a different digit.
![Yohaku Puzzles](/Go/Thumbnails324x200/563.gif)
Yohaku Puzzles
Fill in the blank spaces so that the cells give the sum or the product shown in each row and column.
![Zygo](/Go/Thumbnails324x200/653.gif)
Zygo
Interactive, randomly-generated, number-based logic puzzle designed to develop numeracy skills.
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