Add and subtract negative decimals

Question 1

At 6 pm in Helsinki it was −2.7 °C. By midnight the temperature had dropped 1.3 °C. What was the temperature at midnight, in °C?

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Question 2

5.7 + (−2.7) = ?

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Question 3

−2.47 − (−4.45) = ?

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Question 4

At 6 pm in Helsinki it was 1.3 °C. By midnight the temperature had dropped 6.7 °C. What was the temperature at midnight, in °C?

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Question 5

−6.1 + (−0.8) = ?

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Question 6

−0.36 − 3.09 = ?

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Question 7

At 6 pm in Edinburgh it was −5.5 °C. By midnight the temperature had dropped 3 °C. What was the temperature at midnight, in °C?

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Question 8

8.8 + (−5.6) = ?

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Question 9

−2.83 − (−1.43) = ?

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Question 10

At 6 pm in Edinburgh it was 1.6 °C. By midnight the temperature had dropped 0.9 °C. What was the temperature at midnight, in °C?

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Question 11

−3.4 + (−8) = ?

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Question 12

−4.78 − 0.48 = ?

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Question 13

At 6 pm in Helsinki it was 1.6 °C. By midnight the temperature had dropped 7.6 °C. What was the temperature at midnight, in °C?

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Question 14

3.5 + (−3.9) = ?

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Question 15

−2.27 − 2.64 = ?

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Question 16

At 6 pm in Edinburgh it was −5.5 °C. By midnight the temperature had dropped 6.9 °C. What was the temperature at midnight, in °C?

Answer