What's Included
- Addition equations within 20
- Strategy-friendly layout
- Mixed difficulty practice
- Teacher answer key
USA · Grade 1 · Math · Free Printable
Grade 1 Addition Within 20
Build fluency with addition facts and strategies for sums within 20.
Grade 1
Math
CCSS 1.OA.C.6
Answer key included
Worksheet Preview
About This Grade 1 Math Worksheet
This Grade 1 worksheet strengthens addition fluency within 20. Students practise efficient strategies such as making ten, counting on and using known facts.
Skills Practiced
- Adding fluently within 20
- Making-ten strategies
- Counting on
- Recording accurate sums
Common Core Connection
Supports CCSS 1.OA.C.6 for Grade 1 math.
Frequently Asked Questions
Is this free?
Yes. Download and print free for classroom and home use.
Is an answer key included?
Yes. The PDF includes a teacher answer key.
US Letter paper?
Yes. Use Fit to printable area. Also works on A4.