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 This jug is marked every 25 mL. How much is in it?
Show worked solution
3 × 25 = 75 mL.
2 A scale is labelled every 100 g with 4 spaces between labels. Give the value of one mark, and the reading when the pointer is 3 marks past 300 g.
Show worked solution
One mark is 25 g. 300 + 3 × 25 = 375 g.
3 A jug is marked every 50 mL. The water reaches the 4th mark. How many millilitres is that?
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200 mL.
Level 2 · Core
4 This scale is labelled every 10 kg with 5 spaces between labels. The pointer is halfway between the 3rd and 4th marks past 20. What does it read?
Show worked solution
20 + 3 × 2 = 26, plus half a mark: 27 kg.
5 A jug of water on a scale reads 650 g. The empty jug weighs 200 g. How much water is there? Then half of it is poured out — how much water is left?
Show worked solution
650 − 200 = 450 g; half is 225 g.
6 A jar of sauce on a scale reads 750 g; the empty jar is 330 g. Rana needs 650 g of sauce. How many more grams does she need?
Show worked solution
750 − 330 = 420; 650 − 420 = 230 g.
Level 3 · Challenge
7 Two jugs. Jug A is marked every 50 mL and filled to the 3rd mark. Jug B is marked every 10 mL and filled to the 6th mark.1 Jug A holds 150 mL.
2 Jug B holds 60 mL.
3 Jug A holds less than jug B.
Which statements are correct?
2 Jug B holds 60 mL.
3 Jug A holds less than jug B.
Which statements are correct?
Show worked solution
3 × 50 = 150 (1 ✓). 6 × 10 = 60 (2 ✓). 150 is more than 60 (3 ✗). 1 and 2.
8 A scale is labelled every 10 kg with 5 spaces between labels. Empty, it reads one mark below 10 kg. With two identical blocks on it, it reads two marks above 40 kg. Give the mass of both blocks together, and of one block.
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44 − 8 = 36 kg together; 18 kg each.
9 Jan's jug is marked every 50 mL. She pours orange juice to the 3rd mark, then adds six times as much apple juice. How many millilitres of drink is that altogether?
Show worked solution
150 + 900 = 1 050 mL.