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 8 as a fraction of 20, in simplest form.
Show worked solution
8/20 with both parts divided by 4 gives 2/5.
2 Write 3/4 as a decimal.
Show worked solution
3 ÷ 4 = 0.75.
3 Write 0.4 as a percentage.
Show worked solution
0.4 × 100 = 40%.
Level 2 · Core
4 Write 18 as a fraction of 24, in simplest form.
Show worked solution
The HCF of 18 and 24 is 6, so 18 ÷ 6 = 3 and 24 ÷ 6 = 4, giving 3/4.
5 Write 14 out of 40 as a percentage.
Show worked solution
14 ÷ 40 = 0.35, and 0.35 × 100 = 35%.
6 Write 5 out of 8 as a decimal.
Show worked solution
5 ÷ 8 = 0.625.
Level 3 · Challenge
7 Write 30 cm as a percentage of 2 metres.
Show worked solution
2 m = 200 cm, so 30/200 = 3/20 = 0.15 = 15%.
8 Write 250 g as a fraction of 1 kg, in simplest form.
Show worked solution
1 kg = 1000 g, so 250/1000, and dividing both by 250 gives 1/4.
9 Write 45 minutes as a percentage of 2 hours.
Show worked solution
2 hours = 120 min, so 45/120 = 3/8 = 0.375 = 37.5%.