Video: Modeling Subtraction on a Number Line to Find the Difference

Count back to subtract. Find the difference. 15 − 9 = _

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Video Transcript

Count back to subtract. Find the difference: 15 take away nine.

We need to start at 15 and count back nine. The first one has already been done: one, two, three, four, five, six, seven, eight, nine.

15 take away nine equals six.

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