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The temperature in Lancaster was 19°C. The temperature in Yardley was –21°C. How much warmer was the temperature in Lancaster than the temperature in Yardley?

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Answer:

It was 40 degrees warmer in Lancaster than Yardley.

Step-by-step explanation:

Answer:

19-(-21)=40°

Step-by-step explanation:

Warmer temperature has to carry a positive sign

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