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Add by counting on - sums up to 20

Free printable Grade 1 math worksheet for "Add by counting on - sums up to 20" — practice addition strategies up to 20. No-prep, print or assign online.

This worksheet provides targeted practice for Grade 1 students to strengthen their addition skills by counting on, focusing on sums up to 20. Teachers can use these exercises to reinforce incremental addition strategies and improve students' number sense and mental math abilities. Ideal for classroom activities or homework, it supports foundational math learning with clear, scaffolded problems.

Math
Number Sense & Operations
Grade 1
Worksheets
Ages 6–7
medium

Learning objectives

  • Demonstrate the ability to add numbers by counting on within sums up to 20
  • Apply counting-on strategies to solve addition problems accurately
  • Build fluency in addition facts up to 20 using incremental counting methods

Answer Key

Answer key for Add by counting on - sums up to 20 — free printable Math worksheet

How to use this worksheet

  1. Click “Download Worksheet” and sign in with Google or email to get the PDF instantly.
  2. Print at home or in class for Grade 1; it's no-prep, with no extra materials needed.
  3. Use the included answer key to mark it in seconds.

Frequently asked questions

Is the “Add by counting on - sums up to 20” worksheet free?

Yes. “Add by counting on - sums up to 20” is a free printable Math worksheet. Sign in with Google or email to download the PDF instantly.

What grade or age is this Math worksheet for?

It's designed for Grade 1 (ages 6–7), covering Addition strategies up to 20.

Does it come with an answer key?

Yes — a matching answer key is included so you can grade it in seconds.

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