## Week 1 Review: Practice Exercises and Problems

Below are the practice exercises for the Week 1 Review on LCM and GCD. You can read the answers and solutions to these exercises and problems. Practice Exercises I. Find the GCD of each...

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Below are the practice exercises for the Week 1 Review on LCM and GCD. You can read the answers and solutions to these exercises and problems. Practice Exercises I. Find the GCD of each...

In the previous post, we have learned the meaning and notation of ratio. We can write the ratio of 8 girls and 12 boys as 8:12 or as 8/12. However, if we represent this as...

One of the key concepts tested in the Civil Service Exam is ratio and proportion. In this series, we are going to discuss how to solve problems involving ratio and proportion. We first begin...

To answer the exercises below, it is assumed that you have already finished reading addition of integers and subtraction of integers. In subtraction of integers, we have learned two rules: (1) a – b...

We have already discussed addition of integers. In this post, I am going to discuss four different techniques in adding integers. Adding Numbers with the Same Sign In adding integers with the same sign, we...

In the previous posts, I have shown to you a series on how to solve word problems by working backward. Although I recommend that you learn this method, it is also very important to learn algebraic...

In the previous post, we have learned how to solve number problems by working backward. In this post, we discuss age problems. We already had 2 examples in the previous post in this series,...