Video: KS1-M17 • Paper 2 • Question 18

Write six different numbers to make these sums correct.

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Video Transcript

Write six different numbers to make these sums correct.

We’re looking for pairs of number which add together to give us a total of 27. We could partition 27 into two 10s and seven ones. Two 10s are 20, plus the seven ones, 20 plus seven equals 27. So we can write our first pair of numbers in the empty boxes. 20 plus seven equals 27.

We could also say that 21 plus six equals 27. And 22 plus five equals 27. There are lots more possible answers, 23 plus four, 24 plus three, 25 and two, 26 plus one, 19 plus eight. There are many more possibilities. But the three pairs of numbers that we’ve chosen to use as our answer are 20 plus seven equal 27, 21 plus six, and 22 plus five.

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