Video: KS1-M16 • Paper 2 • Question 30

KS1-M16-P2-Q30-527182491457

01:55

Video Transcript

Ben has 75 cherries. He eats 28 of them. How many cherries does he have left?

We know that Ben has 75 cherries, and he eats 28. If he started with 75 and then he eats 28, we need to take away the 28 he ate. So if we calculate 75 take away 28, that will tell us how many cherries Ben has left.

One way to help calculate the answer is to think about what we need to add to 28 to make 75. We need to find the difference between 28 and 75. If we add two to 28, that takes us to the nearest 10, which is 30. 30 is three tens. If we add four more tens — 40, 50, 60, 70 — that takes us to 70. And 70 add five is 75.

Altogether, we counted forward two plus 40, which is 42, plus five more, which is 47. The difference between 28 and 75 is 47. Or 75 take away 28 equals 47. Ben had 75 cherries. He ate 28 of them. He has 47 cherries left.

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