CC 8NS-2

Use rational approximations of irrational numbers to compare the size of irrational numbers, locate them approximately on a number line diagram, and estimate the value of expressions (e.g., π2). For example, by truncating the decimal expansion of √2, show that √2 is between 1 and 2, then between  1.4 and  1.5, and explain how to continue on to get better approximations.

Grade: 8
Domain: Number Sense
Cluster: Know that there are numbers that are not rational, and approximate them by rational numbers.   


All Standards    Common Core Standards K-8


Page last modified on May 19, 2011, at 03:00 AM