Question

At noon the outside temperature was –5°F. By 4 p.m. the same day, the temperature had dropped 13°F.

What was the outside temperature at 4 p.m.?

At 4 p.m. the outside temperature was
°F.
7

Answer 1

-5-13=?

Answer 2

i got 8

Answer 3

no when same sign ,add
-5-13=-18
when different sign subtract and keep the sign of larger term.
-5+13=+8
+5-13=-8
-5-13=-18
5+13=18

Answer 4

what>

Answer 5

terms with same sign are added
terms with different sign are subtracted.
for this question ,it is -18