Free · Worked example · 64 problems · Answer key · US Letter
How to do it
Go back to 10 first: 13 − 5 is 13 − 3 − 2.
13−7=13−3−4=10−4=6go back to 10 first: split 7 into 3 and 4 Example problems
- 11−6=
- 16−7=
- 14−5=
- 13−5=
Subtraction facts within 20
- Subtracting 1 and 2
- Subtracting 3 and 4
- Subtracting from 10
- Subtraction facts within 10
- Teen numbers minus ones
- Subtracting 5, 6 and 7
- Subtracting 8 and 9
- Missing number addition and subtraction
- Mixed addition and subtraction to 20