Unit Conversion (Year 3)
Convert between metric units of length, mass and capacity.
The questions below are generated to match the National Curriculum for Year 3 and get harder as you progress from Rookie to Guru.
Worked examples
RookieRead and interpret directly.
Rectangle 5 cm × 3 cm. Perimeter?
- 16 cm
- 15 cm²
- 8 cm
- 15 cm
Answer: 16 cm. 2(L+W).
ProCompare and infer.
Sam's morning starts 07:30. He spends 45 min eating, 30 min dressing. When ready?
- 08:45
- 08:15
- 09:00
- 08:00
Answer: 08:45. + 1h 15min.
GuruMulti-step reasoning.
A jug holds 1 litre. Sara fills 4 cups, each 200 ml. Can she fill 5?
- No - 5 needs 1,000 ml = exactly 1 l, OK so YES.
- Yes always
- No - too much
- Cannot tell
Answer: No - 5 needs 1,000 ml = exactly 1 l, OK so YES.. 5 × 200 = 1,000 = jug.
Related skills
Frequently asked questions
- What is unit conversion?
- Convert between metric units of length, mass and capacity.
- How can my child practise unit conversion at home?
- Work through the examples below, then start a free adaptive session. Northstar adjusts the difficulty automatically and tracks mastery over time.
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