CCSS 8.NS.1 is a free educational video by Robert Wirtz.It helps students in grades 8 practice the following standards 8.NS.1,8.NS.A.1,.
1. 8.NS.A.1 : Know that numbers that are not rational are called irrational. Understand informally that every number has a decimal expansion; for rational numbers show that the decimal expansion repeats eventually, and convert a decimal expansion which repeats eventually into a rational number..
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