Browse Tag: civil service review

2018 PCSR Civil Service Review Guide 3

2018 PCSR Civil Service Review Guide 3

Week 3: October 9 – October 15, 2017


A. Subtraction of Fractions

Youtube Tutorial Videos (Taglish)

Lesson 1: Subtraction of Similar Fractions

Lesson 2: Subtraction of Fractions (Dissimilar Fractions)

Lesson 3: Subtraction of Fractions (Mixed Fractions)

Lesson 4: Subtraction of Mixed Fractions Part 1 (Shortcut)

Lesson 5: Subtraction of Mixed Fractions Part 2 (Shortcut)

More videos

Link 1: Subtraction of Similar Fractions Examples

Link 2: Subtraction of Similar Fractions

Link 3: Subtraction of Mixed Fractions

Link 4: How to Subtract Fractions Part 1

Tutorial Articles

Link 1: How to Subtract Fractions

Link 2: How to Subtract Fractions Practice Test

Link 3: How to Subtract Fractions Solution to Practice Test


A. Vocabulary

B. Grammar
Understanding Simple Past Tense with Exercise

C. Spelling

Part III: CLERICAL (Subprofessional)

Alphabetizing Rules Part 3

Rule 3 Alphabetizing Exercise

Alphabetizing Quiz 3


8 Tips on How to Pass Civil Service Examination Next Time


1. Math English Tutorials and more at the PCSR Civil Service Review website:

2. More than 700 Taglish Math Tutorials at the Sipnayan Youtube channel:
Sipnayan Youtube Channel

3. Sipnayan Website

Like our Facebook Pages and be updated:
PCSR Facebook Page: Philippine Civil Service Reviewer
Sipnayan Facebook Page: Sipnayan

Civil Service Exam Vocabulary Week 3 – Set 2

This is the PCSR third vocabulary reviewer.

1. Confound – verb

Confuse, puzzle

“Ha! No one can confound Conan! He can solve any case in a short period of time!” Billy said after watching the whole episode of Detective Conan.

2. Gall – noun

Irritation, bitterness

Lucas was filled with gall after being rejected by Annie.

3. Jaunty – adjective

Carefree, cheerful

Myrna got picked to play the role Lucy. She portrayed the scene in a jaunty style.

4. Ire – noun

Anger, rage

Jose tried his best to pacify the ire of his mother after failing on his exam.

5. Laud – verb

Praise, extol

Mrs. Gomez was lauded for her efforts to help the unfortunate children to get proper education.

6. Sinewy – adjective
Lean, firm, tough

The newly opened restaurant received negative feedbacks because their meat was sinewy to chew.

7. Retinue – noun

a group of advisers, assistants, or others accompanying an important person; attendants

Mr. President’s retinue followed him on his meeting abroad.

8. Warble – verb

Sing, babble

My 1-year-old baby is warbling while watching her favorite nursery rhyme video.

9. Scapegoat – noun

Someone who bears the blame for others

Cinderella is the scapegoat of her two wicked sisters.

10. Rubble – noun

Broken fragments, debris

After the earthquake, the rescue officers are now removing the rubble, hoping to find any survivors.

PCSR REVIEW SERIES WEEK 2: Addition and Subtraction of Fractions

PCSR REVIEW SERIES for October 2016
Week 2: Addition and Subtraction of Fractions

In Week 1 of our PCSR Review Series , we have learned how to get the Least Common Multiple (LCM) and Greatest Common Divisor (GCD) of two or more numbers. The LCM is used to add and subtract dissimilar fractions. To add or subtract fractions, you have to get the LCM of their denominator and convert them to similar fractions.

The GCD is used for converting fractions to lowest terms. In converting fractions to lowest terms, you have to get the GCD of the numerator and denominator of a fraction, and divide both the numerator and the denominator by the GCD.

There are two more skills you need to know: to convert improper fractions to mixed fractions. Most of the time, final answers are required to be in mixed fractions. Links to tutorials on how to do it are included below.


  1. A Gentle Introduction to Fractions
  2. How to Convert Mixed Fractions to Improper Fractions
  3. How to Convert Improper Fractions to Mixed Fractions
  4. How to Add Fractions
  5. How to Subtract Fractions



If you have time and your internet is fast, I suggest that you watch the entire fraction series (21 videos):

Week 1 Review Answers and Solutions

Below are the solutions and answers to the Practice Exercises and Problems for the Week 1 Review on LCM and GCD.

Practice Exercises
I. Find the GCD of each of the following.
a.) 6, 10
Answer: 2

b.) 18, 42
Answer: 6

c.) 12, 48, 60
Answer: 12

d.) 56, 72
Answer: 8

e.) 225, 75
Answer: 75

II. Find the LCM of each of the following.
a.) 3, 4
Answer: 12

b.) 2, 5
Answer: 10

c.) 3, 6, 8
Answer: 24
d.) 3, 4, 5
Answer: 60

e.) 6, 12, 15
Answer: 60

III. Practice Problems Solutions and Answers

1.) 24 (GCD of 3, 4, and 8)

2.) 15 (GCD of 3 and 15)

3.) Solution: GCD of 3, 7, and 21 is 42. They will be seen in the gym on the same day in 42 days. Since June has 30 days, we need an additional 12 days to complete the 42 days. Therefore, they will be seen on the same day on July 12 (of the same year of course).

Answer: July 12

4.) Solution: The LCM of the two sequences is 12 and since we are looking for the tenth common number, we multiply 12 by 10. This gives us 120.
Answer: 120

5.) (a) Solution: LCM of 24 and 30 is 6. That is 6 groups.
(b) Solution: From (a) we can form 6 groups. There are 30 + 24 = 54 students. So in each group, there are 54/6 = 9 members. Since there are 6 groups, we divide each Grade level by 6. That is, 24/6 = 6 Grade 11 and 30/6 = 5 Grade 12 students in each group.
Answer: 4 Grade 11 students and 5 Grade 12 students.

6.) Reduce 42/56 to lowest terms.
Solution: GCD of 42 and 56 is 14. 42 divided by 14 is 3 and 56 divided by 14 is 4. Therefore, the lowest terms is 3/4.
Answer: 3/4

7.) Answer: 24 (LCM of 6 and 8)

8.) Answer: 6 (GCD of 18 and 12)

9.) Solution: The GCD of 21, 35, and 84 is 7. So, the cube has a side length of 7 cm.
Answer: 7 by 7 by 7

10.) Answer: 30 (GCD of 3, 5, and 6).

You can now ask questions on the Forum page!

As part of making this site more interactive, I have created a forum page where users of this site can ask questions or answer questions by other users as well. However, before you can use the forum, you need to register. If you have registered, you can login and then ask or answer questions. Don’t worry, it’s FREE.

As of now, the forum is still in beta phase (testing phase), so you can’t really expect your questions to be answered immediately. As we gain more members, we will have more persons who will answer the questions.

How to Register (Taglish)

1.) Mag-register dito.   Sa pagreregister, hihingan kayo ng login name at email. Ito na ang gagamitin ninyo palagi kung magpopost kayo sa forum. Continue Reading

Addition of Fractions Online Quiz 2

To those who want to test their skills on addition of fractions, you can take the online quiz below. This is a 10-item test with no time limit. You can immediately check if your answer is correct or not.

If the result of your score is not very good, you might want to read How to Add Fractions  and take the Practice Exercise with complete solutions. You might also check out the first online quiz on addition of fractions. It is slightly easier.

Rules: All answers must be in lowest terms and/or mixed fractions.

[WpProQuiz 6]

Inspiring Comments From You – Thank You!

I have collected several comments from this blog at nakakatuwa at nakakataba ng puso na naappreciate nyo ang These comments inspire me to write more.

Marami pa akong nakalinyang topics na isusulat. Kahit pasado na kayo sa Civil Service Exam, I am encouraging you to read them. Puntahan nyo rin ang, maraming tagalog math videos doon kung gusto nyo mag-aral ng math.

Ang pagaaral, lifetime yan. Hindi yan nagtatapos pag-graduate ng college. Pag marami kayong alam, marami kayong matutulungan (believe me, knowledge is really power). Kung single kayo, magagamit nyo yan later sa mga anak ninyo or kung kailangan nyo ng part-time job, pwede kayo magtutor kung alam nyo ang Math at English. Pag bihasa kayo sa Math and English, any exam na i-take ninyo in the future, hindi kayo masyadong mahihirapan.  Continue Reading

What is the Philippine Civil Service Examination?

The Philippine Civil Service Examination is given by the Civil Service Commission (CSC) to aspirants who want to work in the Philippine government. All government employees aside from a few exceptions (like passing selected board exams) are required to take the CSC Examination to be granted tenure.

There are two levels of Civil Service Examinations: Subprofessional and Professional. The Subprofessional level is for those who have finished 2-year courses or below. Those who have graduated 4-year courses or beyond are advised to take the Professional level.

The CSC examination is mainly composed of English and Mathematics proficiency. The other areas include Filipino, office filing and ethics, and Philippine constitution particularly Republic Act 6713.  As of this writing, the passing score of the CSC Examination is 80%.

This blog will serve as a Civil Service Reviewer for those who want to take the examination. I will be discussing questions that are similar to the examination and provide answers, detailed explanations, and tips. I will also give online mock exercises and examinations. In addition, I will also provide updates, links, and examination results.

For now, I will be discussing Mathematics and English subjects. The other subjects such as Philippine constitution will be discussed later by more qualified persons.