Question

Complete the equivalent addition expression for each subtraction

expression. Then evaluate.
A. 23 - 4= 23 +_=?
B. 7- (-15) = 7+_=?
C. –15 - 4= -15 +_=?

Answer 1

Explanation:

We have to write the additive inverse of the second number.

Additive inverse of 4 is (-4)

Additive inverse of (-4) = 4

A. 23 - 3 = 23 + (-3) = 20

B. 7 - (-15) = 7 + (+15) = 22

C. -15 - 4 = -15 + (-4) = - 19