## PCSR Civil Service Exam Review Guide 5

After learning the operations on fractions in Review Guide 3 and Review Guide 4, let us turn our attentionto operations on decimals this week. In this tutorial, we are going to learn addition, subtraction, multiplication, and division. Here is your review guide from the week.

PART I: MATHEMATICS

A. Operations on Decimals

A.1 Videos

A.2 More videos

Lesson 1: How to Add Numbers with Decimals
Lesson 2: How to Subtract Numbers with Decimals
Lesson 3: How to Multiply Numbers with Decimals
Lesson 4: How to Divide Numbers with Decimals

A.3 Articles

Lesson 1: How to Add Numbers with Decimals
Lesson 2: How to Subtract Numbers with Decimals
Lesson 3: How to Multiply Numbers with Decimals
Lesson 4: How to Divide Numbers with Decimals

PART II: ENGLISH

A. Vocabulary

Civil Service Exam Vocabulary Review Part 5
Tip: Try to memorize the words and use it in your own words.

B. Grammar – The Perfect Progressive Tenses

Lesson 1: Present Perfect Progressive Tense
Lesson 2: Past Perfect Progressive
Lesson 3: Future Perfect Progressive

Enjoy!

## Week 7 Review: Practice Exercises and Problems

Now that we have learned how to operate with decimals and percents and how to convert from one representation to another, let’s have some exercises.

Exercise 1
a.) 1.2 + 3.02 + 4.003
b.) 1.05 + 0.006 + 4.501
c.) 12.1 – 4.25
d.) 11.8 – 2.005
e.) 12.1 – 21.53 + 2.563

Exercise 2
a.) 3 × 0.41
b.) 0.02 × 0.56
c.) 5.1 × 0.45
d.) 5.8 × 4.25
e.) 2.8 × 3.2 × 0.6

Exercise 3
a.) 3 ÷ 0.2
b.) 5.1 ÷ 0.3
c.) 6.4 ÷ 4
d.) 8.1 ÷ 0.009
e.) 0.125 ÷ 0.25

Problems

1.) Convert 0.25 to fraction.

2.) Convert 1/8 to decimal.

3.) Convert 3/4 to percent.

4.) Convert 35% to fraction.

5.) Convert 20% to decimal.