中学生数学

2005, (02) 41

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Size Changes-Contractions
Size Changes-Contractions

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<正> What Are Contractions?In the articles what we have introduced,all of the size change factors were numbers larger than1.So the products are larger than the original values.In this article,we multiply by numbersbetween 0 and 1.This results in products with smaller values.For instance,if 8 is multipliedby 0.35,the product is 2.8.The number 2.8 is smaller than 8.This can be pictured.Consider the segments below.

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