Free Grade 3 Introducing Converting Units Quizzes
Free Grade 3 quizzes for Introducing Converting 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
15 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- UnderstandExplain introducing converting units
Explain introducing converting units accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate introducing converting units
Calculate introducing converting units accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare introducing converting units
Compare introducing converting units accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify introducing converting units
Justify introducing converting 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 Converting 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 9 kg to g.[1]
- 2.Convert 5 m to cm.[1]
- 3.Convert 2 cm to mm.[1]
- 4.Convert 6 L to mL.[1]
- 5.Convert 5.2 L to mL.[2]
- 6.Convert 8.5 kg to g.[2]
- 7.Convert 8.7 m to cm.[2]
- 8.Convert 5.5 kg to g.[2]
- 9.Convert 6.1 L to mL.[3]
- 10.Convert 3.5 kg to g.[3]
- 11.Convert 4.9 L to mL.[3]
- 12.Convert 5.3 cm to mm.[3]
Show answers and working
1. 9000 g
1 kg = 1000 g. 9 × 1000 = 9000 g.
2. 500 cm
1 m = 100 cm. 5 × 100 = 500 cm.
3. 20 mm
1 cm = 10 mm. 2 × 10 = 20 mm.
4. 6000 mL
1 L = 1000 mL. 6 × 1000 = 6000 mL.
5. 5200 mL
1 L = 1000 mL. 5.2 × 1000 = 5200 mL.
6. 8500 g
1 kg = 1000 g. 8.5 × 1000 = 8500 g.
7. 870 cm
1 m = 100 cm. 8.7 × 100 = 870 cm.
8. 5500 g
1 kg = 1000 g. 5.5 × 1000 = 5500 g.
9. 6100 mL
1 L = 1000 mL. 6.1 × 1000 = 6100 mL.
10. 3500 g
1 kg = 1000 g. 3.5 × 1000 = 3500 g.
11. 4900 mL
1 L = 1000 mL. 4.9 × 1000 = 4900 mL.
12. 53 mm
1 cm = 10 mm. 5.3 × 10 = 53 mm.
Worked examples
Convert 4 L to mL.
- 1 L = 1000 mL.
- 4 × 1000 = 4000 mL.
- Answer: 4000 mL
Convert 7.5 L to mL.
- 1 L = 1000 mL.
- 7.5 × 1000 = 7500 mL.
- Answer: 7500 mL
Convert 2.9 kg to g.
- 1 kg = 1000 g.
- 2.9 × 1000 = 2900 g.
- Answer: 2900 g
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 Converting Units
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Frequently asked
- Is this Grade 3 Introducing Converting 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 Imperial 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 Converting Units?
- Move on to Working with Converting Units, Converting Units in Context, Metric Units, Imperial Units, which build directly on this idea.
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