Temperature 13

Work out the temperature after each change.
The temperature starts at 6°C and falls by 13°C.
The temperature starts at 2°C and falls by 8°C

Correct result:

t1 =  -7 °C
t2 =  -6 °C

Solution:

t1=6−13=−7∘C
t2=2−8=−6∘C

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