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 How many centimetres is 3 m?
Show worked solution
3 × 100 = 300 cm.
2 Convert 2 km to metres and 2 m to millimetres.
Show worked solution
2 km = 2 000 m. 2 m = 2 000 mm.
3 How many metres is 450 cm?
Show worked solution
450 ÷ 100 = 4.5 m.
Level 2 · Core
4 How many metres is 0.75 km?
Show worked solution
0.75 × 1000 = 750 m.
5 Write 3 km 40 m in metres, and in kilometres.
Show worked solution
3 040 m = 3.04 km.
6 A plank 1.2 m long is joined end to end with one 85 cm long. How long are they together, in centimetres?
Show worked solution
120 + 85 = 205 cm.
Level 3 · Challenge
7 A walking track is 2.4 km long. Ana has walked 1 850 m.1 She has 550 m left to walk.
2 She has 0.55 km left to walk.
3 She has walked 1.85 km.
Which statements are correct?
2 She has 0.55 km left to walk.
3 She has walked 1.85 km.
Which statements are correct?
Show worked solution
2 400 − 1 850 = 550 m (1 ✓) = 0.55 km (2 ✓). 1 850 m = 1.85 km (3 ✓). 1, 2 and 3.
8 From a 3 m rope, 8 pieces each 35 cm long are cut. How much rope is used, and how much is left, in centimetres?
Show worked solution
8 × 35 = 280 cm used; 300 − 280 = 20 cm left.
9 How many 25 cm pieces can be cut from a 4.5 m strip?
Show worked solution
450 ÷ 25 = 18 pieces.