5.NF.5

5.NF.5. Interpret multiplication as scaling (resizing), by:
 * Comparing the size of a product to the size of one factor on the basis of the size of the other factor, without performing the indicated multiplication.
 * Explaining why multiplying a given number by a fraction greater than 1 results in a product greater than the given number (recognizing multiplication by whole numbers greater than 1 as a familiar case); explaining why multiplying a given number by a fraction less than 1 results in a product smaller than the given number; and relating the principle of fraction equivalence//a/////b// = (//n// × //a//)/(//n// × //b//) to the effect of multiplying //a/////b// by 1.