Understand place value.
Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.g., 706 equals 7 hundreds, 0 tens, and 6 ones; understand special cases A, B.
a. 100 can be thought of as a bundle of ten tens — called a “hundred.”
More information and the complete College and Career Readiness Standards can be found here.