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. A ⭐ Bonus Challenge at the end is extra credit — skip it if the rest was hard work.
Level 1 · Warm-up
1 Write "5 wholes and 9 tenths" as a decimal.
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5.9.
2 Write 1/2 as a decimal.
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5 tenths → 0.5.
3 Which is bigger: 0.6 or 0.42?
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Pad: 0.60 > 0.42 → 0.6.
Level 2 · Core
4 2.5 + 1.75 = ?
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2.50 + 1.75 = 4.25.
5 6 − 2.3 = ?
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6.0 − 2.3 = 3.7.
6 Write 3/5 as a decimal.
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1/5 = 0.2, so 3/5 = 0.6.
Level 3 · Challenge
7 Order largest first: 0.09, 0.4, 1/4 (type like a,b,c)
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As decimals: 0.40, 0.25, 0.09 → 0.4, 1/4, 0.09.
8 Round 7.45 to the nearest whole number.
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7.45 is less than halfway (7.5) → 7.
9 A rope is 5 m. I cut off 1.25 m and then 0.5 m. How much is left?
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5.00 − 1.25 − 0.50 = 3.25 m.