Arizona's College and Career Ready Standards
AZ.5.NBT. Number and Operations in Base Ten (NBT)
5.NBT.A. Understand the place value system.
5.NBT.A.1. Apply concepts of place value, multiplication, and division to understand that in a multi-digit number, a digit in one place represents 10 times as much as it represents in the place to its right and 1/10 of what it represents in the place to its left.