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Free Grade 3 Introducing Two-step Equations Essentials Lesson Plans

Free Grade 3 lesson plans for Introducing Two-step Equations Essentials: 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

Foundation

Estimated time

15 min

Total marks

24

Learning objectives

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

  • RememberIdentify introducing two-step equations essentials

    Identify introducing two-step equations essentials accurately in a familiar context.

    Assessed by: Exit ticket of four short items

  • UnderstandExplain introducing two-step equations essentials

    Explain introducing two-step equations essentials accurately in a familiar context.

    Assessed by: Exit ticket of four short items

  • ApplyCalculate introducing two-step equations essentials

    Calculate introducing two-step equations essentials accurately in a familiar context.

    Assessed by: Exit ticket of four short items

  • AnalyseCompare introducing two-step equations essentials

    Compare introducing two-step equations essentials 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 Introducing Two-step Equations Essentials 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 + 1 = 7.[1]
  2. 2.Solve x + 7 = 11.[1]
  3. 3.Solve x + 8 = 14.[1]
  4. 4.Solve x + 6 = 16.[1]
  5. 5.Solve 5x + 16 = 6.[2]
  6. 6.Solve 2x + 14 = 18.[2]
  7. 7.Solve 5x + 12 = -8.[2]
  8. 8.Solve 9x + 18 = 126.[2]
  9. 9.Solve 7x + 4 = 1x + -44.[3]
  10. 10.Solve 3x + 1 = 2x + -6.[3]
  11. 11.Solve 9x + 6 = 1x + 54.[3]
  12. 12.Solve 7x + 17 = 2x + 67.[3]
Show answers and working
  1. 1. x = 6

    Subtract 1 from both sides: x = 6. Check: 1 × 6 + 1 = 7.

  2. 2. x = 4

    Subtract 7 from both sides: x = 4. Check: 1 × 4 + 7 = 11.

  3. 3. x = 6

    Subtract 8 from both sides: x = 6. Check: 1 × 6 + 8 = 14.

  4. 4. x = 10

    Subtract 6 from both sides: x = 10. Check: 1 × 10 + 6 = 16.

  5. 5. x = -2

    Subtract 16 from both sides: 5x = -10. Divide by 5: x = -2. Check: 5 × -2 + 16 = 6.

  6. 6. x = 2

    Subtract 14 from both sides: 2x = 4. Divide by 2: x = 2. Check: 2 × 2 + 14 = 18.

  7. 7. x = -4

    Subtract 12 from both sides: 5x = -20. Divide by 5: x = -4. Check: 5 × -4 + 12 = -8.

  8. 8. x = 12

    Subtract 18 from both sides: 9x = 108. Divide by 9: x = 12. Check: 9 × 12 + 18 = 126.

  9. 9. x = -8

    Subtract 1x from both sides: 6x + 4 = -44. Subtract 4: 6x = -48. Divide by 6: x = -8.

  10. 10. x = -7

    Subtract 2x from both sides: 1x + 1 = -6. Subtract 1: 1x = -7. Divide by 1: x = -7.

  11. 11. x = 6

    Subtract 1x from both sides: 8x + 6 = 54. Subtract 6: 8x = 48. Divide by 8: x = 6.

  12. 12. x = 10

    Subtract 2x from both sides: 5x + 17 = 67. Subtract 17: 5x = 50. Divide by 5: x = 10.

Worked examples

Easy example

Solve x + 5 = 12.

  1. Subtract 5 from both sides: x = 7.
  2. Check: 1 × 7 + 5 = 12.
  3. Answer: x = 7
Medium example

Solve 6x + 4 = 10.

  1. Subtract 4 from both sides: 6x = 6.
  2. Divide by 6: x = 1.
  3. Check: 6 × 1 + 4 = 10.
  4. Answer: x = 1
Hard example

Solve 8x + 12 = 4x + -16.

  1. Subtract 4x from both sides: 4x + 12 = -16.
  2. Subtract 12: 4x = -28.
  3. Divide by 4: x = -7.
  4. Answer: x = -7

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.

COMMON-CORE COM-647.1 — Mapped statement covering Introducing Two-step Equations Essentials.OCR OCR-468.2 — Mapped statement covering Introducing Two-step Equations Essentials.

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Frequently asked

Is this Grade 3 Introducing Two-step Equations Essentials lesson plan really free?
Yes. Every lesson plans 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 One-step Equations. Each one has its own free lesson, worksheet and quiz.
How is the lesson plan 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 Introducing Two-step Equations Essentials?
Move on to Introducing Two-step Equations Techniques, Introducing Two-step Equations Word Problems, Introducing Two-step Equations Common Errors, Working with Two-step Equations, which build directly on this idea.

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