Question

at 7 p.m. last night, the temputure was 10 degrees. At 7 a.m. the next morning, the temputure was -2 degrees. By how much did the temputure change From 7 p.m. to 7 a.m.

Answer 1

10 to 0 =10

0 to -2 = 2

10+2 =12

 it changed by 12 degrees

Answer 2

The temperature went down by 12 degrees. (Or you could say it changed by -12 degrees)