Question

Find
(a) 35 – (20) (b) 72 – (90)
(c) (– 15) – (– 18) (d) (–20) – (13)
(e) 23 – (– 12) (f) (–32) – (– 40)

Answer 1

@Azteck

Answer 2

I will just give you a property.
\[a-(-b)=a--b=a+b\]

Answer 3

THe rest that don't have two negatives in between numbers would just be subtracting.