## Week 5 Review: Practice Exercises and Problems

In the previous post, we learned about operations on integers, order of operations, and PEMDAS rules. Below are the exercises and problems about these topics.

PCSR WEEK 5 Review: Operations on Integers

Practice Exercises 1

a.) 12 + (-4)

b.) (-9) + 3

c.) (-7) + (- 5)

d.) 8 + 3 + (-11)

e.) 6 + (-10) + (-2)

Practice Exercises 2

a.) 3 – 5

b.) -9 – 4

c.) (-7) – (- 8)

d.) – 2 – 6

e.) 1 – (-10)

Practice Exercises 3

a.) 4 × (- 5)

b.) (-2) × (- 4)

c.) (6) × (- 3)

d.) 8 × 2 × (-1)

e.) (-3) × (2) × (-7)

Practice Exercises 4

a.)-20 ÷ 4

b.) 18 ÷ (- 6)

c.) (-16) ÷ (- 2)

d.) 0 ÷ 8

e.) 9 ÷ 3

Practice Problems

1.) 2 + 3 × 5

2.) (2 + 3) × 5

3.) 3 x (-3) + 4 ×(-2)

4.)

5.)

6.) 16 + (-4) + 12 + (-8 × 3)

7.)

8.) 6 + 3 × 2 – 5

9.) 8 – 12(3 – 4) + (-5 × 2)

10.) 7 + 3 × (-5) – 9 / 3