G8

Copyright © Copyright © Swun MathSwun Math (^) Grade 8 Unit 4 Lesson 2 P TE

Final Check for Understanding

(Teacher Checks Work)

Directions: Identify an inverse operation to use. Solve and check your solution.

1. ─12 + x = 20

Solution:

Answer: x=32

Check: 32 — 12 = 20

20 = 20 ✓

2. 3v = 39

Solution:

Answer: v=13

Check: 3(13) = 39

3 9 = 39 ✓

푥푥

5 =^10

Solution:

Answer: x = 50

Check:^505 = 10

10 = 10 ✓