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 A scale is labelled every 2 kg with 4 small gaps between labels. What is one gap worth?
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0.5 kg.
2 A jug is marked every 50 mL and the level is three marks up. Write the reading, and six times that amount.
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150 mL and 900 mL.
3 A bar on a graph reads 90 mm. How many centimetres is that?
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9 cm.
Level 2 · Core
4 An empty tray reads 2 kg. With three identical blocks on it the scale reads 14 kg. How heavy is one block?
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12 ÷ 3 = 4 kg.
5 A scale reads 1 400 g with a 250 g jar on it. Write the mass of the flour, and how much more is needed to reach 1 500 g.
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1 150 g of flour, so 350 g more is needed.
6 A jug holds 150 mL and six times as much of another liquid is added. How many millilitres are there altogether?
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1 050 mL.
Level 3 · Challenge
7 This graph shows rainfall in millimetres.1 June had 12 cm of rain.
2 March had 4 cm of rain.
3 June had more than twice March's rain.
Which statements are correct?
2 March had 4 cm of rain.
3 June had more than twice March's rain.
Which statements are correct?
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120 mm = 12 cm (1 ✓); 40 mm = 4 cm (2 ✓); 2 × 40 = 80, and 120 is more than that (3 ✓). 1, 2 and 3.
8 An empty bucket reads 2 kg. With four identical bricks in it the scale reads 22 kg. Write the mass of the four bricks and the mass of one brick.
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22 − 2 = 20 kg for four, so one is 5 kg.
9 A scale reads 1 400 g including a 250 g jar. How many grams of flour are in the jar?
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1 150 g.