Chapter 2, Lesson 5


2-5.A understand the definition of subtraction
Rewrite each subtraction as an addition.
a.
7 — 10 b. 18 — (—4)

2-5.B add and subtract integers
Evaluate: —16 + 3 — 12

2-5.C check solutions
For which equation is x = —2 the solution?
I) x + 14 = 16
II) 22 = x + 20
III) 22 + x = 2

(a) I only
(b) II only
(c) III only
(d) I, II, and III