Grade 1 Math Worksheets — Addition & Subtraction Within 20

Free printable math worksheets designed for first graders. Practice addition and subtraction with numbers up to 20, number bonds, and counting exercises. Generate unlimited PDF worksheets instantly.

Grade 1 Math Skills

  • ✓Counting and writing numbers to 100
  • ✓Addition within 20 (single-digit + single-digit)
  • ✓Subtraction within 20
  • ✓Number bonds and fact families
  • ✓Comparing numbers (greater than, less than)
  • ✓Simple word problems

Worksheet Settings for Grade 1

  • 💡Use Arithmetic Drills with numbers 1-20 for addition and subtraction.
  • 💡Start with sums to 10, then gradually increase to 20.
  • 💡Use the Timed Practice at easy difficulty (10 problems, 60 seconds).
  • 💡Print worksheets with large fonts for young learners.

FAQ

What math should a 1st grader know?

By the end of Grade 1, students should fluently add and subtract within 20, count to 120, understand place value (tens and ones), and solve simple word problems.

How many math problems should a 1st grader do daily?

About 10-15 minutes of practice per day is ideal. Start with 10 problems and increase as confidence builds. Quality matters more than quantity at this age.

What comes after addition in Grade 1?

After mastering basic addition, students move to subtraction within 20, then begin understanding place value and preparing for Grade 2 topics like adding two-digit numbers.

Are these worksheets aligned with Common Core?

Yes, our Grade 1 worksheets cover 1.OA (Operations & Algebraic Thinking) and 1.NBT (Number & Operations in Base Ten) standards.

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