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Primary 6 Mathematics · Converting metric units

Name: ______________________

Date: ____________

  1. 1. How many centimetres are in 3.5 m?

    • ☐ (a) 35 cm
    • ☐ (b) 350 cm
    • ☐ (c) 3500 cm
    • ☐ (d) 0.35 cm

  2. 2. What is 2500 g in kilograms?

    • ☐ (a) 25 kg
    • ☐ (b) 2.5 kg
    • ☐ (c) 0.25 kg
    • ☐ (d) 250 kg

  3. 3. What is 45 mm in centimetres?

    • ☐ (a) 4.5 cm
    • ☐ (b) 45 cm
    • ☐ (c) 450 cm
    • ☐ (d) 0.45 cm

  4. 4. Which amount is the same as 1.2 L?

    • ☐ (a) 12 mL
    • ☐ (b) 120 mL
    • ☐ (c) 1200 mL
    • ☐ (d) 1.2 mL

  5. 5. How many metres are in 4 km?

  6. 6. Write 750 mL in litres.

  7. 7. How many grams are in 1.25 kg?

  8. 8. A ribbon is 2 m long. Someone cuts off 65 cm. How many centimetres of ribbon are left?

Answer sheet

  1. 1. 350 cm — 1 m = 100 cm, so 3.5 m = 3.5 × 100 = 350 cm.
  2. 2. 2.5 kg — 1000 g = 1 kg, so 2500 g = 2500 ÷ 1000 = 2.5 kg.
  3. 3. 4.5 cm — 10 mm = 1 cm, so 45 mm = 45 ÷ 10 = 4.5 cm.
  4. 4. 1200 mL — 1 L = 1000 mL, so 1.2 L = 1.2 × 1000 = 1200 mL.
  5. 5. 4000 m — 1 km = 1000 m, so 4 km = 4 × 1000 = 4000 m.
  6. 6. 0.75 L — 1000 mL = 1 L, so 750 mL = 750 ÷ 1000 = 0.75 L.
  7. 7. 1250 g — 1 kg = 1000 g, so 1.25 kg = 1.25 × 1000 = 1250 g.
  8. 8. 135 cm — 2 m = 200 cm. 200 − 65 = 135 cm (which is also 1.35 m).

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