Free Grade 3 Converting Units in Context Worksheets
Free Grade 3 worksheets for Converting Units in Context: 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.
- RememberIdentify converting units in context
Identify converting units in context accurately in a familiar context.
Assessed by: Exit ticket of four short items
- UnderstandExplain converting units in context
Explain converting units in context accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate converting units in context
Calculate converting units in context accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare converting units in context
Compare converting units 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 Converting Units in Context 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 6 km to m.[1]
- 2.Convert 9 L to mL.[1]
- 3.Convert 8 km to m.[1]
- 4.Convert 4 m to cm.[1]
- 5.Convert 1.4 kg to g.[2]
- 6.Convert 7.6 L to mL.[2]
- 7.Convert 5.7 cm to mm.[2]
- 8.Convert 3.3 kg to g.[2]
- 9.Convert 2.4 m to cm.[3]
- 10.Convert 5.5 cm to mm.[3]
- 11.Convert 4.1 L to mL.[3]
- 12.Convert 2.1 cm to mm.[3]
Show answers and working
1. 6000 m
1 km = 1000 m. 6 × 1000 = 6000 m.
2. 9000 mL
1 L = 1000 mL. 9 × 1000 = 9000 mL.
3. 8000 m
1 km = 1000 m. 8 × 1000 = 8000 m.
4. 400 cm
1 m = 100 cm. 4 × 100 = 400 cm.
5. 1400 g
1 kg = 1000 g. 1.4 × 1000 = 1400 g.
6. 7600 mL
1 L = 1000 mL. 7.6 × 1000 = 7600 mL.
7. 57 mm
1 cm = 10 mm. 5.7 × 10 = 57 mm.
8. 3300 g
1 kg = 1000 g. 3.3 × 1000 = 3300 g.
9. 240 cm
1 m = 100 cm. 2.4 × 100 = 240 cm.
10. 55 mm
1 cm = 10 mm. 5.5 × 10 = 55 mm.
11. 4100 mL
1 L = 1000 mL. 4.1 × 1000 = 4100 mL.
12. 21 mm
1 cm = 10 mm. 2.1 × 10 = 21 mm.
Worked examples
Convert 4 L to mL.
- 1 L = 1000 mL.
- 4 × 1000 = 4000 mL.
- Answer: 4000 mL
Convert 6.2 cm to mm.
- 1 cm = 10 mm.
- 6.2 × 10 = 62 mm.
- Answer: 62 mm
Convert 6.5 L to mL.
- 1 L = 1000 mL.
- 6.5 × 1000 = 6500 mL.
- Answer: 6500 mL
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 Converting Units in Context
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Frequently asked
- Is this Grade 3 Converting Units in Context worksheet really free?
- Yes. Every worksheets 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 Converting Units, Introducing Converting Units, Imperial Units. Each one has its own free lesson, worksheet and quiz.
- How is the worksheet 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 Converting Units in Context?
- Move on to Metric Units, Imperial Units, Compound Units, which build directly on this idea.
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