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 What was the temperature on Thursday?
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12 °C.
2 Write the Monday and Friday temperatures.
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18 °C and 27 °C.
3 How many degrees warmer was Friday than Thursday?
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15 °C.
Level 2 · Core
4 Which statement about these temperatures is correct?
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2 × 12 = 24, so Tuesday was exactly twice Thursday.
5 Write the warmest temperature and the coolest, from Mon 18, Tue 24, Wed 21, Thu 12, Fri 27.
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27 °C and 12 °C.
6 Is 24 more than twice 12? Answer 1 for yes and 0 for no.
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0 — it is exactly twice, not more than twice.
Level 3 · Challenge
7 The temperatures were Mon 18, Tue 24, Wed 21, Thu 12, Fri 27.1 Every day was above 10 °C.
2 Tuesday was at least twice as warm as Thursday.
3 Two days were above 25 °C.
Which statements are correct?
2 Tuesday was at least twice as warm as Thursday.
3 Two days were above 25 °C.
Which statements are correct?
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The lowest is 12, above 10 (1 ✓). 24 is exactly twice 12, and "at least" allows equal (2 ✓). Only Friday's 27 beats 25, so one day, not two (3 ✗). 1 and 2.
8 Using the same temperatures, write how many days were above 20 °C and how many were below 15 °C.
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Above 20: 24, 21 and 27 — 3 days. Below 15: only 12 — 1 day.
9 A statement reads "Tuesday was more than twice as warm as Thursday". Tuesday was 24 °C. What is the highest whole number of degrees Thursday could have been for that statement to be true?
Show worked solution
Twice 12 is exactly 24, which is not "more than", so Thursday must be at most 11 — and 2 × 11 = 22, which is less than 24.