Free · Worked example · 54 problems · Answer key · US Letter
How to do it
Subtract the ones. The ten stays: 17 − 4 = 13.
17−3=10+7−3=10+4=14subtract the ones; the ten stays Example problems
- 12−1=
- 18−7=
- 12−2=
- 13−2=
Subtraction facts within 20
- Subtracting 1 and 2
- Subtracting 3 and 4
- Subtracting from 10
- Subtraction facts within 10
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- Subtracting 8 and 9
- Missing number addition and subtraction
- Mixed addition and subtraction to 20