CCLS - Math: 4.NBT.1

Number And Operations In Base Ten2
Generalize Place Value Understanding For Multi-Digit Whole Numbers.
State Standard:
Recognize that in a multi-digit whole number, a digit in one place represents ten times what it represents in the place to its right. For example, recognize that 700 ÷ 70 = 10 by applying concepts of place value and division.