Multiplications of Integers Quiz 1

This is a quiz on multiplication of integers. As we have learned, the following rules are applied in multiplication of integers.

a. positive x positive = positive

b. positive x negative = negative

c. negative x positive = negative

d. negative x negative = positive.

In short, if the signs are the same, the product is positive. If the signs are different, the product is negative.

Good luck!

Multiplications of Integers Quiz 1

Introduction to the Concept of Percentage

Now that we have already studied fractions and decimals, we discuss percentage. You are likely to be aware that the concept of percentage is very useful in daily life. We always go to stores where there are discounts and we do not want loans with high interest. These calculations involve the concept of percentage.

What is percentage really?

Percentage is a number ratio expressed as a fraction of 100. When we say 10 percent, what we really mean is 10 out of 100, or in fraction notation 10/100. Therefore, when we see that a shirt is sold for a 50 percent discount, we actually say 50 out of 100 or 50/100. Notice that 50/100 when reduced to lowest terms is 1/2 which means that we only have to pay half of the price of the shirt. As we all know, we use the symbol % to denote percent. » Read more

Civil Service Exam Vocabulary Review 9

This is the ninth part of the Civil Service Vocabulary Review series of Ph Civil Service Reviewer. In this series, we discuss the words that commonly appear in English vocabulary examinations. The other parts of this series can be found in this blog’s English page.

Civil Service Exam Vocabulary Review 9

1. affliction – state of pain, distress, or grief

Sample Sentence: We must not abandon our brothers and sisters in the time of their affliction.

2. cajole – to persuade someone to do something or to give you something by making promises or saying nice things

Sample Sentence: Anna, the favorite daughter in the family, cajoled her father to buy her a new computer. » Read more

The Operations on Decimals Series

After the Operations on Fractions, we have finally finished  Operations on Decimals. This series discusses the methods and procedures on how to calculate numbers with decimals using the four fundamental operations.

Operations on Decimals

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

I am going to create a video supplement of these posts these weeks to have more examples, so please keep posted. Enjoy learning!

How to Divide Numbers with Decimals

This is the fourth part and the conclusion of the Operations on Decimals series. In this post, we are going to discuss how to divide numbers with decimals.

In the examples below, it is assumed that you already know how to divide decimal numbers by whole numbers. Therefore, the basic idea is to eliminate the decimal point of the divisor. It can done by multiplying both the divisor and the dividend by powers of 10.

Example 1: What is 18.5 divided by 0.2?

To get rid of the decimal point in 0.2, we multiply it by 0. If we do this, we also multiply 8.5 by 10. This gives us 185 divided by 2 which 92.5. » Read more

CSC extends deadline of application for April 2014 written exams

The Civil Service Commission has announced that the deadline for application for written exams for April 2014 has been extended. The deadline was moved from February 20 to February 27, 2014.

The extension includes both the Professional and SubProfessional written examinations. The CSC will administer the examinations in 52 testing centers on April 6, 2014.

The Civil Service Examination is held 2-3 times a year for aspiring government employees in the Philippines. The examinations is held every April and October and sometimes December.

Source: Civil Service Commission Website

How to Multiply Numbers with Decimals

This is the third part of the Operations on Decimals Series and in this post, we discuss about Multiplication of Decimals. In multiplying decimals, the decimal point in the product has something to do with the number of decimals of the factors.

How to Multiply Numbers with Decimals Examples

Example 1:  What is  3.6 \times 4?

In this example, only one factor has a decimal number, the other is a whole number. To multiply, first, ignore the decimal point and then just multiply the numbers:

36 \times 4 = 144.

After multiplying, count the number of decimal numbers (numbers after on the right hand side of the decimal point) of the factors. There is only one decimal number which is 6. So, in the product, starting from the right, count one number and then place the decimal point before that number making it 14.4. » Read more

Civil Service Exam Vocabulary Review 8

This is the eighth part of the Civil Service Vocabulary Review series of Ph Civil Service Reviewer. In this series, we discuss the words that commonly appear in English vocabulary examinations. The other parts of this series can be found in this blog’s English page.

Civil Service Exam Vocabulary Review 8

1. bias – the action of supporting/opposing a particular person or thing in an unfair way.

Sample Sentence: Good judges must be objective about their decisions and must uphold the law without bias. » Read more

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