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Solve for the unknown number: addition and subtraction only — free printable Grade 3 math worksheet

Solve for the unknown number: addition and subtraction only

Free printable Grade 3 math worksheet for "Solve for the unknown number: addition and subtraction only" — practice equations with unknown numbers. No-prep, print or assign online.

This worksheet provides practice solving equations with unknown numbers using addition and subtraction only. Teachers can use it to reinforce students' understanding of basic algebraic concepts and improve their problem-solving skills. Ideal for Grade 3 math lessons focusing on equations, it supports developing fluency in finding unknown values in number sentences.

Math
Algebra & Functions
Grade 3
Worksheets
Ages 8–9
medium

Learning objectives

  • Identify the unknown number in addition and subtraction equations
  • Solve equations by performing addition and subtraction operations
  • Verify solutions to ensure the unknown number satisfies the equation

How to use this worksheet

  1. Click “Download Worksheet” to get the PDF — free with a KiwiBee account (up to 25 downloads a month).
  2. Print at home or in class for Grade 3; it's no-prep, with no extra materials needed.
  3. Hand it out as classwork, homework, or a quick warm-up.

Frequently asked questions

Is the “Solve for the unknown number: addition and subtraction only” worksheet free?

Yes. “Solve for the unknown number: addition and subtraction only” is a free printable Math worksheet. Sign in with a free KiwiBee account to download the PDF — it includes up to 25 downloads a month.

What grade or age is this Math worksheet for?

It's designed for Grade 3 (ages 8–9), covering Equations with unknown numbers.

Do I need to prep anything?

No. It's a no-prep, print-and-go worksheet — just download and hand it out.

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