The temperature at 6 AM was −4°C. By noon it had risen by 11°C. What was the temperature at noon?
- A.5°C
- B.7°C ✓
- C.9°C
- D.15°C
Explanation: −4 + 11 = 7°C.
Class 6 IMO Mathematics Olympiad practice · Number Sense · Integers — The Other Side of Zero
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