Free Grade 3 Introducing Compound Units Quizzes
Free Grade 3 quizzes for Introducing Compound Units: 12 real questions with a full answer key and worked solutions. Metric units change by powers of 10: 10 mm in a cm, 100 cm in a m, 1000 m in a km. Multiply to convert to a smaller unit, divide to convert to a bigger one.
Free
Higher
35 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- UnderstandExplain introducing compound units
Explain introducing compound units accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate introducing compound units
Calculate introducing compound units accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare introducing compound units
Compare introducing compound units accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify introducing compound units
Justify introducing compound units 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 Compound Units works
Metric units change by powers of 10: 10 mm in a cm, 100 cm in a m, 1000 m in a km. Multiply to convert to a smaller unit, divide to convert to a bigger one.
12 practice questions
Easy to hard, 24 marks in total. Try them first, then open the answers.
- 1.Convert 7 m to cm.[1]
- 2.Convert 8 L to mL.[1]
- 3.Convert 8 km to m.[1]
- 4.Convert 9 kg to g.[1]
- 5.Convert 9.1 kg to g.[2]
- 6.Convert 2.6 kg to g.[2]
- 7.Convert 2 m to cm.[2]
- 8.Convert 8.1 cm to mm.[2]
- 9.Convert 2.1 cm to mm.[3]
- 10.Convert 9.8 km to m.[3]
- 11.Convert 3.1 kg to g.[3]
- 12.Convert 2.7 cm to mm.[3]
Show answers and working
1. 700 cm
1 m = 100 cm. 7 × 100 = 700 cm.
2. 8000 mL
1 L = 1000 mL. 8 × 1000 = 8000 mL.
3. 8000 m
1 km = 1000 m. 8 × 1000 = 8000 m.
4. 9000 g
1 kg = 1000 g. 9 × 1000 = 9000 g.
5. 9100 g
1 kg = 1000 g. 9.1 × 1000 = 9100 g.
6. 2600 g
1 kg = 1000 g. 2.6 × 1000 = 2600 g.
7. 200 cm
1 m = 100 cm. 2 × 100 = 200 cm.
8. 81 mm
1 cm = 10 mm. 8.1 × 10 = 81 mm.
9. 21 mm
1 cm = 10 mm. 2.1 × 10 = 21 mm.
10. 9800 m
1 km = 1000 m. 9.8 × 1000 = 9800 m.
11. 3100 g
1 kg = 1000 g. 3.1 × 1000 = 3100 g.
12. 27 mm
1 cm = 10 mm. 2.7 × 10 = 27 mm.
Worked examples
Convert 5 cm to mm.
- 1 cm = 10 mm.
- 5 × 10 = 50 mm.
- Answer: 50 mm
Convert 1.5 km to m.
- 1 km = 1000 m.
- 1.5 × 1000 = 1500 m.
- Answer: 1500 m
Convert 5.8 cm to mm.
- 1 cm = 10 mm.
- 5.8 × 10 = 58 mm.
- Answer: 58 mm
Interactive practice
Free, no account required — answer on screen or print it.
Common mistakes
What learners typically get wrong, and how to fix it.
Divides when converting to a smaller unit.
Correction: Smaller units mean more of them — multiply.
Uses 100 for every conversion.
Correction: Learn which pairs use 10, 100 or 1000.
Teacher tips
- · Keep a conversion staircase on the wall.
Parent tips
- · Weigh fruit at the shop and convert kg to g.
Real-life applications
- · Cooking, measuring height, reading road signs.
Assessment objectives
How mastery is evidenced, and which standards it maps to.
Every free resource for Introducing Compound Units
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Learn — Meet the idea.
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Frequently asked
- Is this Grade 3 Introducing Compound Units 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 Converting Units. 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 Introducing Compound Units?
- Move on to Working with Compound Units, Compound Units in Context, Metric Units, Imperial Units, which build directly on this idea.
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