Definitions for

**"Expanded notation"**Showing place value by multiplying each digit in a number by the appropriate power of 10. For example, 523 = 5 x 100 + 2 x 10 + 3 x 1 or 5 x 102 + 2 x 101 + 3 x 100.

Method of writing numbers as the sum of powers of ten or as the sum of its units, tens, hundreds, etc.

Pointing out the place value of a digit by writing a number as the digit × its place value. For example, 342 = (3 × 102 ) + (4 × 101) + (2 × 10).