Arizona's College and Career Ready Standards
AZ.2.NBT. Number and Operations in Base Ten (NBT)
2.NBT.A. Understand place value.
2.NBT.A.1. Understand that the three digits of a three-digit number represent groups of hundreds, tens, and ones (e.g., 706 equals 7 hundreds, 0 tens, and 6 ones and also equals 70 tens and 6 ones). Understand the following as special cases:
2.NBT.A.1.a. 100 can be thought of as a group of ten tens—called a “hundred.”
2.NBT.A.1.b. The numbers 100, 200, 300, 400, 500, 600, 700, 800, 900 refer to one, two, three, four, five, six, seven, eight, or nine hundreds (and 0 tens and 0 ones).