Subtraction within 20
Subtracting numbers up to 20, often by thinking of the related addition fact.
1st grade · Math · Answer key on the last page · Black and white, US Letter
More versions for members
A second set with new problems and a different theme — handy when your child needs another round.
Warm-up · version B Practice · version B Challenge · version B
See membership →Practice first
- Addition within 20 · 1st grade
- Subtraction within 10 · Kindergarten
Up next
- Two-digit subtraction · 2nd grade
- Bar graphs · 2nd grade
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