Temperature changes
Think of a number line. Moving up adds, and moving down subtracts.
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At the start of the day the temperature was 7°C. By noon it had risen 3°C. What was the temperature at noon? Write the number of degrees.
Answer: 10
At the start of the day the temperature was 4°C. By noon it had risen 8°C. What was the temperature at noon? Write the number of degrees.
Answer: 12
At the start of the day the temperature was −4°C. By noon it had risen 7°C. What was the temperature at noon? Write the number of degrees.
Answer: 3
Tip: Think of a number line. Moving up adds, and moving down subtracts.
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