FIND FOUR DIFFERENT
SINGLE DIGIT NUMBERS
THAT MULTIPLY TOGETHER
TO GIVE 120.
IN HOW MANY DIFFERENT
WAYS CAN YOU ANSWER
THIS QUESTION?
Topics: Starter  Factors  Mental Methods  Number
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48 can be made in 2 different ways:
1 x 2 x 3 x 8 = 48
1 x 2 x 4 x 6 = 48
60 can be made in 2 different ways:
1 x 2 x 5 x 6 = 60
1 x 3 x 4 x 5 = 60
72 can be made in 2 different ways:
1 x 2 x 4 x 9 = 72
1 x 3 x 4 x 6 = 72
84 can be made in 2 different ways:
1 x 2 x 6 x 7 = 84
1 x 3 x 4 x 7 = 84
90 can be made in 2 different ways:
1 x 2 x 5 x 9 = 90
1 x 3 x 5 x 6 = 90
96 can be made in 2 different ways:
1 x 2 x 6 x 8 = 96
1 x 3 x 4 x 8 = 96
108 can be made in 2 different ways:
1 x 2 x 6 x 9 = 108
1 x 3 x 4 x 9 = 108
120 can be made in 3 different ways:
1 x 3 x 5 x 8 = 120
1 x 4 x 5 x 6 = 120
2 x 3 x 4 x 5 = 120
126 can be made in 2 different ways:
1 x 2 x 7 x 9 = 126
1 x 3 x 6 x 7 = 126
144 can be made in 3 different ways:
1 x 2 x 8 x 9 = 144
1 x 3 x 6 x 8 = 144
2 x 3 x 4 x 6 = 144
168 can be made in 3 different ways:
1 x 3 x 7 x 8 = 168
1 x 4 x 6 x 7 = 168
2 x 3 x 4 x 7 = 168
180 can be made in 2 different ways:
1 x 4 x 5 x 9 = 180
2 x 3 x 5 x 6 = 180
192 can be made in 2 different ways:
1 x 4 x 6 x 8 = 192
2 x 3 x 4 x 8 = 192
210 can be made in 2 different ways:
1 x 5 x 6 x 7 = 210
2 x 3 x 5 x 7 = 210
216 can be made in 3 different ways:
1 x 3 x 8 x 9 = 216
1 x 4 x 6 x 9 = 216
2 x 3 x 4 x 9 = 216
240 can be made in 3 different ways:
1 x 5 x 6 x 8 = 240
2 x 3 x 5 x 8 = 240
2 x 4 x 5 x 6 = 240
252 can be made in 2 different ways:
1 x 4 x 7 x 9 = 252
2 x 3 x 6 x 7 = 252
270 can be made in 2 different ways:
1 x 5 x 6 x 9 = 270
2 x 3 x 5 x 9 = 270
280 can be made in 2 different ways:
1 x 5 x 7 x 8 = 280
2 x 4 x 5 x 7 = 280
288 can be made in 2 different ways:
1 x 4 x 8 x 9 = 288
2 x 3 x 6 x 8 = 288
336 can be made in 3 different ways:
1 x 6 x 7 x 8 = 336
2 x 3 x 7 x 8 = 336
2 x 4 x 6 x 7 = 336
360 can be made in 3 different ways:
1 x 5 x 8 x 9 = 360
2 x 4 x 5 x 9 = 360
3 x 4 x 5 x 6 = 360
378 can be made in 2 different ways:
1 x 6 x 7 x 9 = 378
2 x 3 x 7 x 9 = 378
420 can be made in 2 different ways:
2 x 5 x 6 x 7 = 420
3 x 4 x 5 x 7 = 420
432 can be made in 3 different ways:
1 x 6 x 8 x 9 = 432
2 x 3 x 8 x 9 = 432
2 x 4 x 6 x 9 = 432
480 can be made in 2 different ways:
2 x 5 x 6 x 8 = 480
3 x 4 x 5 x 8 = 480
504 can be made in 3 different ways:
1 x 7 x 8 x 9 = 504
2 x 4 x 7 x 9 = 504
3 x 4 x 6 x 7 = 504
540 can be made in 2 different ways:
2 x 5 x 6 x 9 = 540
3 x 4 x 5 x 9 = 540
576 can be made in 2 different ways:
2 x 4 x 8 x 9 = 576
3 x 4 x 6 x 8 = 576
630 can be made in 2 different ways:
2 x 5 x 7 x 9 = 630
3 x 5 x 6 x 7 = 630
672 can be made in 2 different ways:
2 x 6 x 7 x 8 = 672
3 x 4 x 7 x 8 = 672
720 can be made in 2 different ways:
2 x 5 x 8 x 9 = 720
3 x 5 x 6 x 8 = 720
756 can be made in 2 different ways:
2 x 6 x 7 x 9 = 756
3 x 4 x 7 x 9 = 756
840 can be made in 2 different ways:
3 x 5 x 7 x 8 = 840
4 x 5 x 6 x 7 = 840
864 can be made in 2 different ways:
2 x 6 x 8 x 9 = 864
3 x 4 x 8 x 9 = 864
1008 can be made in 2 different ways:
2 x 7 x 8 x 9 = 1008
3 x 6 x 7 x 8 = 1008
1080 can be made in 2 different ways:
3 x 5 x 8 x 9 = 1080
4 x 5 x 6 x 9 = 1080
1512 can be made in 2 different ways:
3 x 7 x 8 x 9 = 1512
4 x 6 x 7 x 9 = 1512
Note to teacher: Doing this activity once with a class helps students develop strategies. It is only when they do this activity a number of times that they will have the opportunity to practise those strategies. That is when the learning is consolidated. Click a button below to regenerate another version of this starter with a different target number.
Christmas Present Ideas
It is often very difficult choosing Christmas presents for family and friends but so here are some seasonal, mathematicsrelated gifts chosen and recommended by Transum Mathematics.
Equate board gameHere's a great board game that will give any family with schoolaged 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 Scrabblefor 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 WrongThe 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 onesyllable 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 CalculatorThis 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. TINspire 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 TINspire, 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 Alevel candidate then works their way through university. more... 
Apple iPad ProThe 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... Before giving an iPad as a Christmas gift you could add a link to iPad Maths to the home screen. 
Aristotle's Number PuzzleIt’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 MathsThis 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 514 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... 
Click the images above to see all the details of these gift ideas and to buy them online.
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 chosen and recommended by Transum Mathematics to get you started.
Teacher, do your students have
access to computers? 

Here a concise URL for a version of this page without the comments.
Transum.org/go/?Start=October18
Here is the URL which will take them to a great online activity based on the same idea and allow them to earn virtual trophies for each set of three ways the find of making a target number.