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Free Grade 3 Equations Quizzes

Free Grade 3 quizzes for Equations: 12 real questions with a full answer key and worked solutions. An equation is a balance. Do the same thing to both sides until the letter is on its own, then check by substituting back.

Price

Free

Difficulty

Stretch

Estimated time

15 min

Total marks

24

Learning objectives

Every objective is checkable, and each one maps to an activity and an assessment.

  • RememberIdentify equations

    Identify equations accurately in a familiar context.

    Assessed by: Exit ticket of four short items

  • UnderstandExplain equations

    Explain equations accurately in a familiar context.

    Assessed by: Exit ticket of four short items

  • ApplyCalculate equations

    Calculate equations accurately in a familiar context.

    Assessed by: Exit ticket of four short items

  • AnalyseCompare equations

    Compare equations accurately in a familiar context.

    Assessed by: Exit ticket of four short items

Prerequisites

Close these gaps first — each has its own free lesson, worksheet and quiz.

How Equations works

An equation is a balance. Do the same thing to both sides until the letter is on its own, then check by substituting back.

Key wordsequationsolveinversebalance

12 practice questions

Easy to hard, 24 marks in total. Try them first, then open the answers.

  1. 1.Solve x + 10 = 22.[1]
  2. 2.Solve x + 8 = 17.[1]
  3. 3.Solve x + 14 = 14.[1]
  4. 4.Solve x + 1 = 1.[1]
  5. 5.Solve 2x + 14 = 16.[2]
  6. 6.Solve 2x + 1 = 15.[2]
  7. 7.Solve 7x + 20 = 34.[2]
  8. 8.Solve 2x + 3 = 5.[2]
  9. 9.Solve 8x + 5 = 3x + 45.[3]
  10. 10.Solve 2x + 8 = 1x + 11.[3]
  11. 11.Solve 6x + 12 = 1x + 17.[3]
  12. 12.Solve 6x + 13 = 5x + 5.[3]
Show answers and working
  1. 1. x = 12

    Subtract 10 from both sides: x = 12. Check: 1 × 12 + 10 = 22.

  2. 2. x = 9

    Subtract 8 from both sides: x = 9. Check: 1 × 9 + 8 = 17.

  3. 3. x = 0

    Subtract 14 from both sides: x = 0. Check: 1 × 0 + 14 = 14.

  4. 4. x = 0

    Subtract 1 from both sides: x = 0. Check: 1 × 0 + 1 = 1.

  5. 5. x = 1

    Subtract 14 from both sides: 2x = 2. Divide by 2: x = 1. Check: 2 × 1 + 14 = 16.

  6. 6. x = 7

    Subtract 1 from both sides: 2x = 14. Divide by 2: x = 7. Check: 2 × 7 + 1 = 15.

  7. 7. x = 2

    Subtract 20 from both sides: 7x = 14. Divide by 7: x = 2. Check: 7 × 2 + 20 = 34.

  8. 8. x = 1

    Subtract 3 from both sides: 2x = 2. Divide by 2: x = 1. Check: 2 × 1 + 3 = 5.

  9. 9. x = 8

    Subtract 3x from both sides: 5x + 5 = 45. Subtract 5: 5x = 40. Divide by 5: x = 8.

  10. 10. x = 3

    Subtract 1x from both sides: 1x + 8 = 11. Subtract 8: 1x = 3. Divide by 1: x = 3.

  11. 11. x = 1

    Subtract 1x from both sides: 5x + 12 = 17. Subtract 12: 5x = 5. Divide by 5: x = 1.

  12. 12. x = -8

    Subtract 5x from both sides: 1x + 13 = 5. Subtract 13: 1x = -8. Divide by 1: x = -8.

Worked examples

Easy example

Solve x + 15 = 24.

  1. Subtract 15 from both sides: x = 9.
  2. Check: 1 × 9 + 15 = 24.
  3. Answer: x = 9
Medium example

Solve 4x + 16 = 36.

  1. Subtract 16 from both sides: 4x = 20.
  2. Divide by 4: x = 5.
  3. Check: 4 × 5 + 16 = 36.
  4. Answer: x = 5
Hard example

Solve 8x + 13 = 6x + -3.

  1. Subtract 6x from both sides: 2x + 13 = -3.
  2. Subtract 13: 2x = -16.
  3. Divide by 2: x = -8.
  4. Answer: x = -8

Interactive practice

Free, no account required — answer on screen or print it.

Common mistakes

What learners typically get wrong, and how to fix it.

  • Does an operation to only one side.

    Correction: Keep the balance — both sides, every time.

  • Uses the wrong inverse (subtracts to undo multiplying).

    Correction: Undo × with ÷ and + with −.

Teacher tips

  • · Always ask pupils to substitute their answer back in.

Parent tips

  • · 'I think of a number' puzzles at dinner.

Real-life applications

  • · Working out an unknown price or time from a total.

Assessment objectives

How mastery is evidenced, and which standards it maps to.

CBSE CBS-317.1 — Mapped statement covering Equations.COLLEGE-BOARD COL-912.2 — Mapped statement covering Equations.

Every free resource for Equations

One concept, one ecosystem — all of it free.

Goes deeper

The entities below this one, each with the same complete free resource set.

Sibling concepts

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Lateral links, including across subjects.

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Frequently asked

Is this Grade 3 Equations quiz really free?
Yes. Every quizzes on FreeMathWorksheet is free to use, print and share — no account, no paywall and no watermark.
What should a learner already know before this?
Start with Algebraic Expressions, Number Sense. Each one has its own free lesson, worksheet and quiz.
How is the quiz sequenced?
Recognition first, then understanding, application, reasoning and finally mastery — the same ladder used across every free resource on the platform.
What comes next after Equations?
Move on to Inequalities, Sequences, Quadratics, Simultaneous Equations, which build directly on this idea.

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