Question

Add the following temperatures:
(i) -21°C and 21°C
(iii) -17°C and -21°C
(ii) 30°C and -29°C​

Answer 1

Answer:

(i) 0C

ii) -38’C

iii) 1’C

Answer 2

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(i) -21°C +21°C

-21+21=0°C

(ii) -17°C + -21°C

-17+(-21)

-17-21= -38°C

(iii) 30°C + -29°C

30-29=1°C

Hope it helps you.....