Question

Yesterday the temperature at noon was 15.3°F. By midnight, it had gone down by 26°F. What was the temperature at midnight?

Answer 1

-10.7°F.

Steps used to get answer:

1. Use this rule: a-b= -(b-a)

-(26-15.3)

2. Use the algorithm method.

5 10

26.0

- 15.3

---------------------

10.7

3. After simplification, we have:

−(26−15.3)=−10.7

4. Therefore, 15.3-26=-10.7

−10.7°F.

Done by NeighborhoodDealer