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 much rain fell in April?
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90 mm.
2 Write the rainfall for May and for July.
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May 60 mm and July 30 mm.
3 How many millimetres of rain fell in June?
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120 mm.
Level 2 · Core
4 April had 90 mm and July had 30 mm. Which statement is correct?
Show worked solution
3 × 30 = 90, so April had exactly three times July's rain.
5 Write the total rain for April and May together, and how much more that is than June's rain.
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90 + 60 = 150 mm, which is 150 − 120 = 30 mm more than June.
6 How many millimetres did the rainfall fall by from June to July?
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90 mm.
Level 3 · Challenge
7 Look at the rainfall data again.1 July had the least rain.
2 April had at least three times July's rain.
3 March had more rain than May.
Which statements are correct?
2 April had at least three times July's rain.
3 March had more rain than May.
Which statements are correct?
Show worked solution
30 is the smallest (1 ✓). 90 is exactly 3 × 30, and "at least" allows equal (2 ✓). March 40 is less than May 60 (3 ✗). 1 and 2.
8 Using the rainfall data, write the total for the five months and the difference between the wettest and driest months.
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Total 340 mm, and 120 − 30 = 90 mm.
9 A claim says "June had more than twice May's rain". June had 120 mm and May had 60 mm. How many millimetres would June have needed for the claim to be true — that is, what is the smallest whole number of millimetres above 120 that would do it?
Show worked solution
Twice 60 is 120, so June would need more than 120: 121 mm.