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If you draw several triangles and carefully measure each angle with a protractor, you will find that the sum of the angle measures of each triangle is 180°

You can better understand the bar graphs through a real-life example.

You need to get familiar with the bar graphs and understand some concepts in order to interpret it the right way

To find 50% of a number, divide the number 2

There is an easy way to find 1% of a number that does not require any calculations

Learn the vocabulary of discount sales to be a smart shopper

There are some keywords that can be translated into mathematical symbols

Solve application problems by adding and subtracting mixed numbers

Subtracting mixed number is similar to adding mixed number

You can add mixed numbers by writing them as improper fractions or adding their whole parts and fractions separately