Subtracting 7

Learn with an example

✈️Subtract.15 – 7 =

  • You can count back to find 15 – 7. Start at 15 and count back 7 times.
  • You end at 8.
  • 15 – 7 = 8

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  • You can also use 10 to find 15 – 7.
  • Start at 15. Subtract 5 to get to 10. Then subtract 2 more. That way, you subtract 7 in all.
  • You end at 8.
  • 15 – 7 = 8

✈️Subtract. 8 – 7 =

  • You can count on to find 8 – 7. Start at 7. Count on until you reach 8.
  • You counted on 1 time.
  • 8 – 7 = 1

✈️Subtract. 7 – 7 =

  • When you subtract a number from itself, the answer is zero.
  • 7 – 7 = 0
  • You can count back to show this. Start at 7 and count back 7 times.
  • You end at 0.
  • 7 – 7 = 0

Let’s practice!