About this worksheet
Twenty-four mixed subtraction problems within 20, from 6 − 5 up to 20 − 7, with spots at the top for the time and the score.
Easy problems and ones that cross ten are shuffled together, so a child has to choose a strategy each time rather than falling into a pattern.
Use it once a week and save the pages. A falling time and a rising score are the easiest way to show a child they are getting better.
What students will practice
- Subtract within 20
- Mix problems that do and do not cross ten
- Track time and score from week to week
Details
- Grade level
- Grade 1
- Subject
- Math · Subtraction
- Standard
- CCSS 1.OA.6
- Pages
- 1
- Format
- PDF · US Letter and A4 included
- License
- Free for classroom use · Attribution appreciated
- Last updated
- October 31, 2026
