After a one-month break, we have already started our review series for the month of August 2019. The date of the examination will be on August 7, 2019. If you wish to follow our review series (I suggest you do), please like and then follow the Philippine Civil Service Exam Reviewer Facebook page. Every week, we post Math, English, and Clerical tutorials and practice questions. For the first week our topics are LCM, GCD, Subject Verb agreement. You may download the review outline here.
We have already posted new video tutorials in Filipino on LCM and GCD on the Sipnayan Youtube channel.
Greatest Common Divisor/Greatest Common Factor
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PCSR 2017 CIVIL SERVICE EXAM REVIEW GUIDE 1
Updated: April 25, 2017
PART I: MATHEMATICS
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
Lesson 1: Least Common Multiple Part 1
Lesson 2: Least Common Multiple Part 2
Lesson 3: Least Common Multiple Part 3
C. Proper, Improper, and Mixed Form
D. More on LCM and GCD
PART II: ENGLISH
Tip: Try to memorize the words and use it in your own words.
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
Civil Service Review Spelling Quiz 1
Part III: CLERICAL Operations (Subprofessional)
Alphabetizing Rules Part 1
PART IV: TIPS AND TRICKS
The numbers that can divide an integer is called its factor or divisor. For example, the factors of 4 are 1, 2, and 4 because these are the numbers that divide 4 without having a remainder. Another example is 6 which has factors 1, 2, 3, and 6. It is clear that each number has always 1 and itself as factors. Note that in this discussion, when I say number, I mean positive integer.
If we select more than one number, we can observe that they have common factors (just like having common multiples). Let’s have the following examples. » Read more