Video: Using Number Lines to Find the Missing Difference in a Subtraction Equation

Fill in the missing number. 14 − 9 = _. Use the number line if you need to.

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Video Transcript

Fill in the missing number. 14 take away nine equals the missing number. Use the number line if you need to.

Our starting number is 14. And we need to take away nine. That means we need to count back nine: one, two, three, four, five, six, seven, eight, nine. We landed on number five. So we can say that 14 take away nine equals five. We started at 14 on the number line. We counted backwards nine places until we found the answer, number five.

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