Free Grade 3 Working with Introducing Nets Common Errors Flashcards
Free Grade 3 flashcards for Working with Introducing Nets Common Errors: 12 real questions with a full answer key and worked solutions. Volume is how much space a 3D shape takes up. For a cuboid, multiply length × width × height. Surface area is the total area of all faces.
Free
Foundation
25 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- UnderstandExplain working with introducing nets common errors
Explain working with introducing nets common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate working with introducing nets common errors
Calculate working with introducing nets common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare working with introducing nets common errors
Compare working with introducing nets common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify working with introducing nets common errors
Justify working with introducing nets 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 Working with Introducing Nets Common Errors works
Volume is how much space a 3D shape takes up. For a cuboid, multiply length × width × height. Surface area is the total area of all faces.
12 practice questions
Easy to hard, 24 marks in total. Try them first, then open the answers.
- 1.Find the volume of a cuboid 4 cm × 3 cm × 6 cm.[1]
- 2.Find the volume of a cuboid 9 cm × 6 cm × 4 cm.[1]
- 3.Find the volume of a cuboid 3 cm × 5 cm × 7 cm.[1]
- 4.Find the volume of a cuboid 8 cm × 10 cm × 3 cm.[1]
- 5.Find the volume of a cuboid 8 cm × 10 cm × 2 cm.[2]
- 6.Find the volume of a cuboid 2 cm × 10 cm × 9 cm.[2]
- 7.Find the volume of a cuboid 7 cm × 9 cm × 9 cm.[2]
- 8.Find the volume of a cuboid 10 cm × 4 cm × 6 cm.[2]
- 9.Find the surface area of a cuboid 6 cm × 10 cm × 9 cm.[3]
- 10.Find the surface area of a cuboid 7 cm × 6 cm × 4 cm.[3]
- 11.Find the surface area of a cuboid 4 cm × 9 cm × 3 cm.[3]
- 12.Find the surface area of a cuboid 2 cm × 6 cm × 7 cm.[3]
Show answers and working
1. 72 cm³
Volume = length × width × height. 4 × 3 × 6 = 72 cm³.
2. 216 cm³
Volume = length × width × height. 9 × 6 × 4 = 216 cm³.
3. 105 cm³
Volume = length × width × height. 3 × 5 × 7 = 105 cm³.
4. 240 cm³
Volume = length × width × height. 8 × 10 × 3 = 240 cm³.
5. 160 cm³
Volume = length × width × height. 8 × 10 × 2 = 160 cm³.
6. 180 cm³
Volume = length × width × height. 2 × 10 × 9 = 180 cm³.
7. 567 cm³
Volume = length × width × height. 7 × 9 × 9 = 567 cm³.
8. 240 cm³
Volume = length × width × height. 10 × 4 × 6 = 240 cm³.
9. 408 cm²
Three pairs of faces: 60, 90, 54. 2 × (60 + 90 + 54) = 408 cm².
10. 188 cm²
Three pairs of faces: 42, 24, 28. 2 × (42 + 24 + 28) = 188 cm².
11. 150 cm²
Three pairs of faces: 36, 27, 12. 2 × (36 + 27 + 12) = 150 cm².
12. 136 cm²
Three pairs of faces: 12, 42, 14. 2 × (12 + 42 + 14) = 136 cm².
Worked examples
Find the volume of a cuboid 5 cm × 2 cm × 9 cm.
- Volume = length × width × height.
- 5 × 2 × 9 = 90 cm³.
- Answer: 90 cm³
Find the volume of a cuboid 2 cm × 8 cm × 3 cm.
- Volume = length × width × height.
- 2 × 8 × 3 = 48 cm³.
- Answer: 48 cm³
Find the surface area of a cuboid 6 cm × 4 cm × 7 cm.
- Three pairs of faces: 24, 28, 42.
- 2 × (24 + 28 + 42) = 188 cm².
- Answer: 188 cm²
Interactive practice
Free, no account required — answer on screen or print it.
Common mistakes
What learners typically get wrong, and how to fix it.
Adds the dimensions instead of multiplying.
Correction: Volume = l × w × h.
Counts only three faces for surface area.
Correction: A cuboid has six faces — three matching pairs.
Teacher tips
- · Build cuboids from cubes before using the formula.
Parent tips
- · Work out how many sugar cubes fit in a box.
Real-life applications
- · Filling a fish tank, wrapping a present.
Assessment objectives
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Frequently asked
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- What should a learner already know before this?
- Start with Rules and Methods in Introducing Nets Common Errors, Key Vocabulary of Introducing Nets Common Errors, Introducing Nets Word Problems. 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.
- What comes next after Working with Introducing Nets Common Errors?
- Move on to Introducing Nets Common Errors in Examinations, Introducing Nets Essentials, Introducing Nets Techniques, Introducing Nets Word Problems, which build directly on this idea.
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