Free Grade 3 Introducing Two-step Equations Techniques in Examinations Lesson Plans
Free Grade 3 lesson plans for Introducing Two-step Equations Techniques in Examinations: 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.
Free
Foundation
15 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- RememberIdentify introducing two-step equations techniques in examinations
Identify introducing two-step equations techniques in examinations accurately in a familiar context.
Assessed by: Exit ticket of four short items
- UnderstandExplain introducing two-step equations techniques in examinations
Explain introducing two-step equations techniques in examinations accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate introducing two-step equations techniques in examinations
Calculate introducing two-step equations techniques in examinations accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare introducing two-step equations techniques in examinations
Compare introducing two-step equations techniques in examinations 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 Techniques in Examinations 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.
12 practice questions
Easy to hard, 24 marks in total. Try them first, then open the answers.
- 1.Solve x + 6 = 8.[1]
- 2.Solve x + 13 = 18.[1]
- 3.Solve x + 19 = 21.[1]
- 4.Solve x + 17 = 19.[1]
- 5.Solve 7x + 13 = 48.[2]
- 6.Solve 9x + 16 = 106.[2]
- 7.Solve 6x + 4 = 40.[2]
- 8.Solve 7x + 14 = 7.[2]
- 9.Solve 4x + 20 = 1x + 50.[3]
- 10.Solve 7x + 18 = 5x + 12.[3]
- 11.Solve 2x + 20 = 1x + 11.[3]
- 12.Solve 7x + 20 = 4x + 26.[3]
Show answers and working
1. x = 2
Subtract 6 from both sides: x = 2. Check: 1 × 2 + 6 = 8.
2. x = 5
Subtract 13 from both sides: x = 5. Check: 1 × 5 + 13 = 18.
3. x = 2
Subtract 19 from both sides: x = 2. Check: 1 × 2 + 19 = 21.
4. x = 2
Subtract 17 from both sides: x = 2. Check: 1 × 2 + 17 = 19.
5. x = 5
Subtract 13 from both sides: 7x = 35. Divide by 7: x = 5. Check: 7 × 5 + 13 = 48.
6. x = 10
Subtract 16 from both sides: 9x = 90. Divide by 9: x = 10. Check: 9 × 10 + 16 = 106.
7. x = 6
Subtract 4 from both sides: 6x = 36. Divide by 6: x = 6. Check: 6 × 6 + 4 = 40.
8. x = -1
Subtract 14 from both sides: 7x = -7. Divide by 7: x = -1. Check: 7 × -1 + 14 = 7.
9. x = 10
Subtract 1x from both sides: 3x + 20 = 50. Subtract 20: 3x = 30. Divide by 3: x = 10.
10. x = -3
Subtract 5x from both sides: 2x + 18 = 12. Subtract 18: 2x = -6. Divide by 2: x = -3.
11. x = -9
Subtract 1x from both sides: 1x + 20 = 11. Subtract 20: 1x = -9. Divide by 1: x = -9.
12. x = 2
Subtract 4x from both sides: 3x + 20 = 26. Subtract 20: 3x = 6. Divide by 3: x = 2.
Worked examples
Solve x + 4 = 15.
- Subtract 4 from both sides: x = 11.
- Check: 1 × 11 + 4 = 15.
- Answer: x = 11
Solve 3x + 7 = 37.
- Subtract 7 from both sides: 3x = 30.
- Divide by 3: x = 10.
- Check: 3 × 10 + 7 = 37.
- Answer: x = 10
Solve 3x + 1 = 2x + 4.
- Subtract 2x from both sides: 1x + 1 = 4.
- Subtract 1: 1x = 3.
- Divide by 1: x = 3.
- Answer: x = 3
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.
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Frequently asked
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- What should a learner already know before this?
- Start with Working with Introducing Two-step Equations Techniques, Rules and Methods in Introducing Two-step Equations Techniques, Introducing Two-step Equations Essentials. Each one has its own free lesson, worksheet and quiz.
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- Recognition first, then understanding, application, reasoning and finally mastery — the same ladder used across every free resource on the platform.
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- Move on to Introducing Two-step Equations Essentials, Introducing Two-step Equations Word Problems, Introducing Two-step Equations Common Errors, which build directly on this idea.
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