## 2018 PCSR Civil Service Review Guide 1

Week 1: September 24 – October 1, 2017

This week, we are going to learn about Least Common Multiple (LCM) and Greatest Common Divisor (GCD). LCM is needed in adding and subtracting dissimilar fractions, while GCD is needed in reducing fractions to lowest terms. In addition to LCM and GCD, we will also learn about converting improper fractions to mixed number and vice versa.

PART I: MATHEMATICS

A. GCD

Youtube Tutorial Videos (Taglish)

Lesson 1: Understanding Common Divisors

Lesson 2: Common Divisors and Greatest Common Divisor

Lesson 3: Exercises on Getting the GCD

Lesson 4: Getting the GCD by Prime Factorization

Lesson 5: GCD and Reducing Fractions to Lowest Terms

Tutorial Articles

B. LCM

Youtube Tutorial Videos (Taglish)

Lesson 1: Least Common Multiple Part 1

Lesson 2: Least Common Multiple Part 2

Lesson 3: Least Common Multiple Part 3

Tutorial Article

How to Get the Least Common Multiple of Numbers

C. Lowest Terms, Improper Fractions and Mixed Form

Youtube Tutorial Videos (Taglish)

- Reducing Fractions to Lowest Terms
- How to Convert Improper Fractions to Mixed Number
- How to Convert Mixed Fractions to Improper Fractions

Tutorial Articles

- How to Reduce Fractions to Lowest Terms
- How to Convert Improper Fractions to Mixed Number
- How to Convert Mixed Fractions to Improper Fractions

D. More about LCM and GCD

Difference between LCM and GCD

PART II: ENGLISH

A. Vocabulary

Civil Service Exam Vocabulary Review Part 1

B. Grammar

Lesson 1: Verb and Tenses: An Introduction

Lesson 2: The Subject-Verb Agreement Rules Part 1

Lesson 3: The Subject-Verb Agreement Rules Part 2

Lesson 4: Subject-Verb Agreement Exercise

C. Spelling

Civil Service Review Spelling Quiz 1 Set 2

Part III: CLERICAL (Subprofessional)

PART III: TIPS AND TRICKS

7 Tips on Answering Reading Comprehension Questions

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