Mental Math: How to Subtract Numbers Faster

In the previous post, we have learned a faster way to add numbers near multiples of 10. In this post, we are going to learn to subtract numbers faster, but first let’s review some basic terms. In the subtraction 8 – 6 = 2 8 is the minuend, 6 is the subtrahend and 2 is the […]

Mental Math: Adding Numbers Near Multiples of 10

People who are very good at mental math calculations are not all gifted. Some of them just know simple strategies in order to calculate numbers easily and fast. In this post, I am going to teach you a math trick on adding numbers that will simplify and speed up calculations. With enough practice, you can even use […]

Percentage Math Trick 3: Making Use of Fractions

In the previous two posts, we have learned two types of calculations about percentage: ignoring the percent sign and making use of 10%. In this post, we learn another math shortcut that is very useful in speed calculations about percentage. One of the easiest ways to calculate for a percentage of a number is to convert […]

Percentage Math Tricks: Making Use of 10%

In the previous post, we have learned how to calculate the percentage of a number by ignoring the percent sign. We continue our discussion on the tricks in getting the percentage with a number by making use of 10%. Calculating 10% of the number is one of the easiest calculations in percentage. To calculate 10% means […]

Percentage Math Trick 1: Ignoring the Percent Sign

Discounts and interests are some of the practical application of percentage. We often see 15% discount in the things we buy in stores and we also hear interests of money on loans. But how can we calculate percentage easily? Here are some math tricks on calculating percentage. Percentage Math Trick 1: Ignoring the Percent Sign The […]