# Three Make 1000

Choose three different numbers from the table then add them together.

 195 383 429 400 306 323 277 318 301 405 220 297 272 380 294 343

How many different ways are there of making 1000?

[Note to teacher: Click on the numbers above to select them. Correct solutions will be recorded above
but the application does not check for repeats or the same numbers added in a different order.

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Topics: Starter | Arithmetic

• The Best Maths Class Ever. 7cd/M2, King Alfred's College. Oxfordshire.
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• It was fun but sir didn't like this one because he only got 1 !!! Molly says, 'I think we should do similar ones to this'. Danny managed to find 5 different combinations which we thought was EXCELLENT...
• Karina, St.Johns Primary
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• We managed to find 6 combinations.
• Mr Fairhead, The Mountbatten School
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• My Year 8 class worked on this independently and we then shared our solutions. They managed to find 9 different solutions. I "accidently" forgot to show the bit about using a calculator, which made the results all the more rewarding!
• Mrs Ward And 7X2, Eaton Bank School, Congleton
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• We found 9 combos altogther!
• Mrs L Kirkwood, Sir Henry Fermor CE Primary
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• My Year 5 class have just worked on this activity. They were not allowed calculators and we came up with 9 solutions! Well done 5M.
• Mary Yeboah, Home
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• It was a lovely starter . Miss forgot to show us the calculator part so it was even better.
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• This is Miss M from The Meadows - despite some of the negative comments from my year 9 class - we love The Starter of the Day and enjoy the tasks - thanks for all your hard work on this.
• Mrs F, Sevenoaks
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• First day of term and my class found 10 solutions! Well done Year 6!
• Mr Fraser & Class 10 (Y5), West Park Academy, Darlington
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• In Class 10 (Year 5) we managed to find 10 different combinations!
• The Best Yr8 Maths Class, King Alfreds Academy. EAST SITE
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• Was good fun. We found 10 which we think is excellent in just ten minutes. We challenge any school can do better....
• Mr Kavanagh's Fifth Class, Cork, Ireland
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• Our class found six different sums, however if we include rearrangements of the numbers within the sums, we got thirty six.
• Mr Williams, Winterfold House School
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• We got all 11. Everyone in the class got at least 2 answers.
• Transum,
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• Thanks to everyone for making the comments and as a result the instruction to a calculator has been removed. It is now up to the teacher to declare whether or not a calculator can be used. This makes a worthwhile pencil and paper calculation practice but even with the of a calculator it is expected that the mental process involved in deciding which numbers are likely candidates is also worthwhile.
• Mrs Lovatt, Killinghall CE Primary
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• Year 5 and 6 loved this challenge, especially trying to beat the year 8s with calculators! They managed to find all 9.
• J6 Numeracy Class, Sidcot School
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• Year 6 class found 10 solutions :).
• Mrs Hogarth, Parkhead Primary School, Scotland
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• We managed to find 11 different combinations in 15 minutes! My pupils really enjoy starters like this!
• Mr Mills, Homewood School
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• My yr 11 class only got 4 but it was their 1st lesson back after the holiday. Well done Josh, Ella, Jake and Liam who got our combinations.
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• P7, Sullivan Prep
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• Loved this! We found 6 ways in 10 minutes. One pupil was quicker than the teacher! It was good for discussing strategies.
• Mrs Fox, Park View Primary
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• 10 ways found!
• Miss King, Kirkcudbright Primary School
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• We managed to find nine different methods! Woohoo!

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This starter has scored a mean of 3.3 out of 5 based on 260 votes.

Previous Day | This starter is for 24 April | Next Day

Note to teacher: Doing this activity once with a class helps students develop strategies. It is only when they do this activity a second time that they will have the opportunity to practise those strategies. That is when the learning is consolidated. Click the button above to regenerate another version of this starter from random numbers.

Try "Four Make 999", it's a little harder!

Christmas Present Ideas

It is often very difficult choosing Christmas presents for family and friends but so here are some seasonal, mathematics-related gifts chosen and recommended by Transum Mathematics.

## Equate board game

Here's a great board game that will give any family with school-aged kids hours of worthwhile fun. Christmas is a time for board games but this one will still be useful at any time of year. Games can be adapted to suit many levels of Mathematical ability.

For Maths tutors working with just one or small groups of pupils this game has proved to be an excellent activity for a tutorial. Deciding on the best moves can spark pertinent discussions about mathematical concepts.

Equate looks a bit like Scrabble--for aspiring mathematicians, that is. Designed by a real mathematician, it works like this: You put down tiles on a board and make points by correctly completing simple equations. Your nine tiles include both numbers and mathematical symbols; you can add on to previous plays both vertically and horizontally. more...

## How Not To Be Wrong

The maths we learn in school can seem like an abstract set of rules, laid down by the ancients and not to be questioned. In fact, Jordan Ellenberg shows us, maths touches on everything we do, and a little mathematical knowledge reveals the hidden structures that lie beneath the world's messy and chaotic surface. In How Not to be Wrong, Ellenberg explores the mathematician's method of analyzing life, from the everyday to the cosmic, showing us which numbers to defend, which ones to ignore, and when to change the equation entirely. Along the way, he explains calculus in a single page, describes Gödel's theorem using only one-syllable words, and reveals how early you actually need to get to the airport.

What more could the inquisitive adult want for Christmas? This book makes a cosy, interesting read in front of the fire on those cold winter evenings. more...

## Graphic Display Calculator

This handheld device and companion software are designed to generate opportunities for classroom exploration and to promote greater understanding of core concepts in the mathematics and science classroom. TI-Nspire technology has been developed through sound classroom research which shows that "linked multiple representation are crucial in development of conceptual understanding and it is feasible only through use of a technology such as TI-Nspire, which provides simultaneous, dynamically linked representations of graphs, equations, data, and verbal explanations, such that a change in one representation is immediately reflected in the others.

For the young people in your life it is a great investment. Bought as a Christmas present but useful for many years to come as the young person turns into an A-level candidate then works their way through university. more...

The analytics show that more and more people are accessing Transum Mathematics via an iPad as it is so portable and responsive. The iPad has so many other uses in addition to solving Transum's puzzles and challenges and it would make an excellent gift for anyone.

The redesigned Retina display is as stunning to look at as it is to touch. It all comes with iOS, the world's most advanced mobile operating system. iPad Pro. Everything you want modern computing to be. more...

## Aristotle's Number Puzzle

It’s a bit of a tradition to give puzzles as Christmas Gifts to nieces and nephews. This puzzle is ideal for the keen puzzle solver who would like a challenge that will continue over the festive period (at least!).

This number puzzle involves nineteen numbers arranged into a hexagon. The goal of the puzzle is to rearrange the numbers so each of the fifteen rows add up to 38. It comes in a wooden style with an antique, aged look.

Keep the Maths in Christmaths with this reasonably priced stocking filler. more...

## The Story Of Maths [DVD]

The films in this ambitious series offer clear, accessible explanations of important mathematical ideas but are also packed with engaging anecdotes, fascinating biographical details, and pivotal episodes in the lives of the great mathematicians. Engaging, enlightening and entertaining, the series gives viewers new and often surprising insights into the central importance of mathematics, establishing this discipline to be one of humanity s greatest cultural achievements. This DVD contains all four programmes from the BBC series.

Marcus du Sautoy's wonderful programmes make a perfect Christmas gift more...

## Christmas Maths

This book provides a wealth of fun activities with a Christmas theme. Each photocopiable worksheet is matched to the Numeracy Strategy and compatible with the Scottish 5-14 Guidelines. This series is designed for busy teachers in the late Autumn term who are desperate for materials that are relevant and interesting and that can be completed with minimun supervision.

All the activities are suitable for use by class teachers, supply teachers, SEN teachers and classroom assistants and cover topics such as 'How many partridges did the true love give all together?' and 'Filling a sleigh with presents by rolling a dice!'. Children will have lots of fun working through the Christmas Maths themes but also gain valuable skills along the way.

A great source of ideas and another reasonably priced stocking filler. more...

## A Compendium Of Mathematical Methods

How many different methods do you know to solve simultaneous equations? To multiply decimals? To find the nth term of a sequence?

A Compendium of Mathematical Methods brings together over one hundred different approaches from classrooms all over the world, giving curious mathematicians the opportunity to explore fascinating methods that they've never before encountered.

If you teach mathematics to any age group in any country, you are guaranteed to learn lots of new things from this delightful book. It will deepen your subject knowledge and enhance your teaching, whatever your existing level of expertise. It will inspire you to explore new approaches with your pupils and provide valuable guidance on explanations and misconceptions. more...

I had been tutoring the wonderful Betsy for five years. When the day came for our last ever session together before the end of her Year 13, I received this beautiful book as a gift of appreciation.

This a very readable book by Ben Orlin. I'm really enjoying the humour in the writing and the drawings are great.

Ben Orlin answers maths' three big questions: Why do I need to learn this? When am I ever going to use it? Why is it so hard? The answers come in various forms-cartoons, drawings, jokes, and the stories and insights of an empathetic teacher who believes that mathematics should belong to everyone. more...

Click the images above to see all the details of these gift ideas and to buy them online.

## Maths T-Shirts

Your access to the majority of the Transum resources continues to be free but you can help support the continued growth of the website by doing your Amazon shopping using the links on this page. Below is an Amazon search box and some items I have chosen and recommend to get you started. As an Amazon Associate I earn a small amount from qualifying purchases which helps pay for the upkeep of this website.

 Teacher, do your students have access to computers?Do they have iPads or Laptops in Lessons? Whether your students each have a TabletPC, a Surface or a Mac, this activity lends itself to eLearning (Engaged Learning).

Transum.org/go/?Start=April24

Here is the URL which will take them to a student version of this activity for which a Transum virtual trophy is available.

Transum.org/go/?to=Make1000

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