# 8.NS.A

Know that there are numbers that are not rational, and approximate them by rational numbers.

## Standards

8.NS.A.1 Know that numbers that are not rational are called irrational. Understand informally that every...
8.NS.A.2 Use rational approximations of irrational numbers to compare the size of irrational numbers,...

## Tasks aligned to this cluster

Estimating Square Roots
Calculating the square root of 2
Calculating and Rounding Numbers
Approximating pi