Video: Subtracting within 20 by Decomposing to Make a Ten

Which addition expression is equal to 14 − 9? [A] 1 + 4 [B] 1 − 4 [C] 14 + 9 [D] 9 − 14 [E] 9 + 5

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Video Transcript

Which addition expression is equal to 14 take away nine? Is it one plus four, one take away four, 14 plus nine, nine take away 14, or nine plus five?

The picture shows 14 circles, with nine of them crossed out. How many are left? One, two, three, four, five. 14 take away nine equals five. The question asks which addition expression is equal to 14 take away nine. It can’t be one take away four or nine take away 14 because they are not addition expressions. They are subtraction expressions.

So which of these addition expressions equals five? Could it be one plus four? Here’s one counter and here are four more. One plus four is five. The addition expression equal to 14 take away nine is one plus four. 14 take away nine is five. And one plus four is five.

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