Work through the levels in order. Type your answer and press Check — open the worked solution if you get stuck. Answers like -6, 3/4 or 0.25 are typed exactly as shown.
Level 1 · Warm-up
1 How many millilitres does 1 cm3 hold?
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1 mL. One cubic centimetre holds exactly one millilitre.
2 Convert 5000 cm3 to litres. (number of L)
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5000 ÷ 1000 = 5 L.
3 Convert 3 L to millilitres. (number of mL)
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3 × 1000 = 3000 mL.
Level 2 · Core
4 A carton is 20 cm by 15 cm by 10 cm. Find its volume. (number of cm3)
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20 × 15 × 10 = 3000 cm3.
5 A lunchbox is 25 cm by 12 cm by 8 cm. How many litres does it hold? (number of L)
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25 × 12 × 8 = 2400 cm3, and 2400 ÷ 1000 = 2.4 L.
6 How many litres are there in 1 m3? (number of L)
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1,000,000 ÷ 1000 = 1000 L.
Level 3 · Challenge
7 A fish tank is 50 cm long, 30 cm wide and 24 cm high. How many litres does it hold? (number of L)
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50 × 30 × 24 = 36000 cm3, so the capacity is 36 L.
8 A water tank is 1 m long, 50 cm wide and 40 cm deep. How many litres does it hold? (number of L)
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1 m = 100 cm, so 100 × 50 × 40 = 200,000 cm3, and 200,000 ÷ 1000 = 200 L.
9 A garden water container holds 0.6 m3. How many litres is that? (number of L)
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1 m3 = 1000 L, so 0.6 × 1000 = 600 L.