Free Grade 3 Nets in Context Lessons
Free Grade 3 lessons for Nets in Context: 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
Stretch
25 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- UnderstandExplain nets in context
Explain nets in context accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate nets in context
Calculate nets in context accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare nets in context
Compare nets in context accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify nets in context
Justify nets in context 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 Nets in Context 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 8 cm × 7 cm × 5 cm.[1]
- 2.Find the volume of a cuboid 10 cm × 4 cm × 2 cm.[1]
- 3.Find the volume of a cuboid 6 cm × 9 cm × 10 cm.[1]
- 4.Find the volume of a cuboid 4 cm × 2 cm × 10 cm.[1]
- 5.Find the volume of a cuboid 8 cm × 7 cm × 6 cm.[2]
- 6.Find the volume of a cuboid 4 cm × 3 cm × 5 cm.[2]
- 7.Find the volume of a cuboid 4 cm × 5 cm × 2 cm.[2]
- 8.Find the volume of a cuboid 3 cm × 5 cm × 6 cm.[2]
- 9.Find the surface area of a cuboid 2 cm × 10 cm × 4 cm.[3]
- 10.Find the surface area of a cuboid 8 cm × 3 cm × 2 cm.[3]
- 11.Find the surface area of a cuboid 4 cm × 7 cm × 8 cm.[3]
- 12.Find the surface area of a cuboid 2 cm × 9 cm × 5 cm.[3]
Show answers and working
1. 280 cm³
Volume = length × width × height. 8 × 7 × 5 = 280 cm³.
2. 80 cm³
Volume = length × width × height. 10 × 4 × 2 = 80 cm³.
3. 540 cm³
Volume = length × width × height. 6 × 9 × 10 = 540 cm³.
4. 80 cm³
Volume = length × width × height. 4 × 2 × 10 = 80 cm³.
5. 336 cm³
Volume = length × width × height. 8 × 7 × 6 = 336 cm³.
6. 60 cm³
Volume = length × width × height. 4 × 3 × 5 = 60 cm³.
7. 40 cm³
Volume = length × width × height. 4 × 5 × 2 = 40 cm³.
8. 90 cm³
Volume = length × width × height. 3 × 5 × 6 = 90 cm³.
9. 136 cm²
Three pairs of faces: 20, 40, 8. 2 × (20 + 40 + 8) = 136 cm².
10. 92 cm²
Three pairs of faces: 24, 6, 16. 2 × (24 + 6 + 16) = 92 cm².
11. 232 cm²
Three pairs of faces: 28, 56, 32. 2 × (28 + 56 + 32) = 232 cm².
12. 146 cm²
Three pairs of faces: 18, 45, 10. 2 × (18 + 45 + 10) = 146 cm².
Worked examples
Find the volume of a cuboid 7 cm × 5 cm × 4 cm.
- Volume = length × width × height.
- 7 × 5 × 4 = 140 cm³.
- Answer: 140 cm³
Find the volume of a cuboid 8 cm × 3 cm × 6 cm.
- Volume = length × width × height.
- 8 × 3 × 6 = 144 cm³.
- Answer: 144 cm³
Find the surface area of a cuboid 4 cm × 8 cm × 6 cm.
- Three pairs of faces: 32, 48, 24.
- 2 × (32 + 48 + 24) = 208 cm².
- Answer: 208 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
How mastery is evidenced, and which standards it maps to.
Every free resource for Nets in Context
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Learn — Meet the idea.
Practice — Build fluency.
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Teach — Deliver it to a class.
Frequently asked
- Is this Grade 3 Nets in Context lesson really free?
- Yes. Every lessons 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 Working with Nets, Introducing Nets, Perimeter and Area. Each one has its own free lesson, worksheet and quiz.
- How is the lesson 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 Nets in Context?
- Move on to Surface Area, Volume of Prisms, Volume of Cylinders, Volume of Spheres, which build directly on this idea.
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