Free Grade 3 Reverse Differentiation in Context Common Errors Quizzes
Free Grade 3 quizzes for Reverse Differentiation in Context Common Errors: 12 real questions with a full answer key and worked solutions. Differentiation finds the rate of change (the gradient) of a curve. For axⁿ, the derivative is naxⁿ⁻¹.
Free
Stretch
35 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- RememberIdentify reverse differentiation in context common errors
Identify reverse differentiation in context common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- UnderstandExplain reverse differentiation in context common errors
Explain reverse differentiation in context common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate reverse differentiation in context common errors
Calculate reverse differentiation in context common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare reverse differentiation in context common errors
Compare reverse differentiation in context common errors 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 Reverse Differentiation in Context Common Errors works
Differentiation finds the rate of change (the gradient) of a curve. For axⁿ, the derivative is naxⁿ⁻¹.
12 practice questions
Easy to hard, 24 marks in total. Try them first, then open the answers.
- 1.Differentiate y = 1x^2 + 8x.[1]
- 2.Differentiate y = 6x^2 + 9x.[1]
- 3.Differentiate y = 4x^4 + 9x.[1]
- 4.Differentiate y = 2x^4 + 6x.[1]
- 5.Differentiate y = 2x^2 + 9x.[2]
- 6.Differentiate y = 3x^2 + 7x.[2]
- 7.Differentiate y = 5x^3 + 9x.[2]
- 8.Differentiate y = 2x^5 + 9x.[2]
- 9.Find the gradient of y = 4x^2 + 7x at x = 1.[3]
- 10.Find the gradient of y = 1x^2 + 5x at x = 2.[3]
- 11.Find the gradient of y = 3x^4 + 2x at x = 2.[3]
- 12.Find the gradient of y = 4x^4 + 9x at x = 3.[3]
Show answers and working
1. dy/dx = 2x^1 + 8
Multiply by the power, then reduce the power by 1. 1x^2 → 2x^1; 8x → 8.
2. dy/dx = 12x^1 + 9
Multiply by the power, then reduce the power by 1. 6x^2 → 12x^1; 9x → 9.
3. dy/dx = 16x^3 + 9
Multiply by the power, then reduce the power by 1. 4x^4 → 16x^3; 9x → 9.
4. dy/dx = 8x^3 + 6
Multiply by the power, then reduce the power by 1. 2x^4 → 8x^3; 6x → 6.
5. dy/dx = 4x^1 + 9
Multiply by the power, then reduce the power by 1. 2x^2 → 4x^1; 9x → 9.
6. dy/dx = 6x^1 + 7
Multiply by the power, then reduce the power by 1. 3x^2 → 6x^1; 7x → 7.
7. dy/dx = 15x^2 + 9
Multiply by the power, then reduce the power by 1. 5x^3 → 15x^2; 9x → 9.
8. dy/dx = 10x^4 + 9
Multiply by the power, then reduce the power by 1. 2x^5 → 10x^4; 9x → 9.
9. 15
dy/dx = 8x^1 + 7. At x = 1: 8 × 1 + 7 = 15.
10. 9
dy/dx = 2x^1 + 5. At x = 2: 2 × 2 + 5 = 9.
11. 98
dy/dx = 12x^3 + 2. At x = 2: 12 × 8 + 2 = 98.
12. 441
dy/dx = 16x^3 + 9. At x = 3: 16 × 27 + 9 = 441.
Worked examples
Differentiate y = 6x^5 + 7x.
- Multiply by the power, then reduce the power by 1.
- 6x^5 → 30x^4; 7x → 7.
- Answer: dy/dx = 30x^4 + 7
Differentiate y = 4x^2 + 4x.
- Multiply by the power, then reduce the power by 1.
- 4x^2 → 8x^1; 4x → 4.
- Answer: dy/dx = 8x^1 + 4
Find the gradient of y = 4x^3 + 4x at x = 2.
- dy/dx = 12x^2 + 4.
- At x = 2: 12 × 4 + 4 = 52.
- Answer: 52
Interactive practice
Free, no account required — answer on screen or print it.
Common mistakes
What learners typically get wrong, and how to fix it.
Forgets that a constant differentiates to 0.
Correction: Constants have zero gradient.
Reduces the power but forgets to multiply by it.
Correction: Multiply by the power, then reduce it by 1.
Teacher tips
- · Link to gradients of straight lines first.
Parent tips
- · Ask how speed relates to distance over time.
Real-life applications
- · Speed from distance, maximising profit.
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Frequently asked
- Is this Grade 3 Reverse Differentiation in Context Common Errors 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 Reverse Differentiation in Context Word Problems, Reverse Differentiation in Context Techniques, Working with Reverse Differentiation. 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 Reverse Differentiation in Context Common Errors?
- Move on to Introducing Reverse Differentiation, Working with Reverse Differentiation, which build directly on this idea.
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