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Calculating With Percent: What is 30% of 450? Home Page

Note: The mini-lesson above has audio. It is the second in a series of three lessons on calculating with percent. It shows how to calculate a part of a whole given a percent - the example used finds what 30% of 450 is. The lesson shows how equal ratios can be used for the calculation. It also illustrates the problem and the concept using a double number line.

extract from lesson 2 - Calculating Percentages

Lesson #2


A Percentage Lesson - By

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