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Math : Operations on Positive and Negative Integers

The Civil Service Exam includes questions on integers. There may be questions involving integers as well as a flow chart which makes use of integers (more on that flow chart thing next time). Let’s start with the basics first.

Integers are zero plus all the positive and negative whole numbers (0, 345, -678, 43, -26, etc.). They can be represented on a number line with zero in the middle. To the left are all the negative integers and to the right are all the positive integers. Remember that integers do not have a fractional part.

Now we move on to Basic Math Operations with Integers. The table below shows how to add, subtract, multiply, and divide positive and negative integers (The table is taken from our soon-to-be-released Ultimate Civil Service Reviewer – to be launched this June).

Take the Practice Test on Integers!

1 Comment

  1. […] The Civil Service Exam will include questions involving integers – from basic math calculations to number flow charts. That being said, you have to be familiar with what integers are and how to add, subtract, multiply, and/or divide them. You have to know the rules that govern operations involving positive and negative integers. To know more about these rules, check our post: How to Add, Subtract, Multiply and Divide Positive and Negative Integers […]

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I'm a Journalism graduate of the University of the Philippines - Diliman and I'm currently taking up units in Professional Education courses. I have written for various blogs, websites, and magazines in the past. Right now, I work as a freelance eBook writer and a mobile app developer.

While I was managing a fledgling online business and being a full-time mom to my four kids - Yana, Yshi, Yza and Vincent Jr., I took the Career Service Examination - Pencil and Paper Test - Professional Level (CSE-PPT- Prof) for the first time in December 2015. I passed and I got lucky enough to be among the Top 10 examinees in my batch, 3rd in the National Capital Region.