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 Work out 0.3 × 0.2.
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3 × 2 = 6 and the question has 2 decimal places, so the answer is 0.06.
2 Work out 0.7 × 8.
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7 × 8 = 56 and there is 1 decimal place, so the answer is 5.6.
3 Work out 6.4 ÷ 8.
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8 into 64 tenths is 8 tenths, so the answer is 0.8. Check: 0.8 × 8 = 6.4.
Level 2 · Core
4 Work out 1.2 × 0.5.
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12 × 5 = 60 with 2 decimal places gives 0.60, which is 0.6.
5 Work out 4.75 × 100.
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Each digit moves two places left, so 4.75 becomes 475.
6 Work out 15.6 ÷ 4.
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4 into 15 is 3 remainder 3, then 4 into 36 tenths is 9 tenths, so 3.9. Check: 3.9 × 4 = 15.6.
Level 3 · Challenge
7 Work out 0.7 × 0.8.
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7 × 8 = 56 with 2 decimal places, so the answer is 0.56.
8 Work out 4.8 ÷ 0.6.
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4.8 ÷ 0.6 becomes 48 ÷ 6 = 8.
9 A 4.5 m ribbon is cut into pieces each 0.5 m long. How many pieces are there?
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4.5 ÷ 0.5 becomes 45 ÷ 5 = 9 pieces.