Subtraction Within 20 Practice Worksheet for Grade 1

About this worksheet

Twenty subtraction problems within 20, written vertically with plenty of room to write each answer. Most of them cross ten, like 12 − 7, 15 − 9 and 16 − 8, which is the hardest part of first grade subtraction.

It is a plain page with nothing to distract, the kind a teacher prints as a class set or a parent uses for ten quiet minutes after school.

Because it prints in black and white with no pictures, it is light on ink and easy to run off again whenever a child needs more practice.

What students will practice

• Subtract within 20
• Solve problems written vertically
• Practice problems that cross ten

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

September 26, 2026