Question

Subtract.

–15.6 – (–8.1) -22.5

Answer 1

Ok so look

-15.6-(-8.1)-22.5
Tip:Whenever there's a negative times a negative it's always going to equal a positive.

Answer 2

-22.5

Answer 3

So keeping that in mind the question will look like this now.
-15.6 +8.1 -22.5=?

Answer 4

-15.6-(-8.1)-22.5
-15.6+8.1-22.5
-7.5-22.5
-30

Answer 5

KO_o

Answer 6

-15