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Content Creation Team. A multidisciplinary and multicultural team made up of mathematicians, teachers, professors and other education professionals! They strive to create the best math content possible.

Feb03

Learn to Subtract with Remainders

Today, we will be learning to use “borrowing,” (sometimes called “regrouping”) in a subtraction problem. In order to do this we need to remember how the elements of a subtraction problem are placed: Place the number being subtracted under the number being subtracted from so that place values in the same column match. Subtract each […]

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Feb02

Let’s Learn about Ratios with Singaporean Bar Models

Let’s Learn about Ratios with Singaporean Bar Models

In today’s post, we’re going to study the concept of ratios using the “Singapore Bar Model” methodology. First, we need to take into consideration that two quantities can be compared in different ways. By subtracting, by a fraction, and by multiplying…but today, we’re going to use ratios as a factor of comparison. To be able to […]

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Jan26

Inverse Proportionality: The Rule of Three Inverse

Inverse Proportionality: The Rule of Three Inverse

In this week’s post, we’re going to look at what the rule of three inverse is and how to use it to solve problems. The rule of three is a way to solve proportionality problems. If we are dealing with a direct proportionality, then apply the direct rule of three. If we are dealing with inverse proportionality, […]

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Jan25

Learn and Practice How to Subtract or Add Fractions

In order to subtract or add fractions, we must have the same denominator. We can see this in different cases: Subtract or add fractions with the same denominator: If both fractions to be added or subtracted have the same denominator, we leave the same denominator and add or subtract the numerator. We are going to look […]

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Jan20

How to Solve Problems with Distance Conversions

How to Solve Problems with Distance Conversions

In today’s post, we are going to see some problems involving distance conversions, and give some advice for solving them. Problem number 1 with distance conversions The pirate, Silver Beard, has arrived on Coral island to search for treasure. On the map, it says that from the shore, he must hopscotch 3.7 hectometers toward the […]

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