Unit 18 – Patterns, puzzles and problems
3 Each number above is the result of multiplying the two numbers below.
36
20 4
3 5 2
5
Find the missing numbers. Can you find two different solutions for the third puzzle? Can you make up a puzzle of your own for others to solve? Creating and solving problems about addition and subtraction
Look at the two problems here. How can you represent them? Talk about any connections you notice. A cinema sells 537 tickets for the comedy film. They sell 245 tickets for the adventure film.
1
A ferry is carrying 782 passengers. 245 people get off at the first island. How many people are left on the ferry?
How many tickets did the cinema sell for these two films in total?
2 Can you create two new problems that use the addition 345 + 537 and the subtraction 782 − 145?
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