3.NOS.A: Understand place value.

Understand place value.

3.NOS.A.1Apply and extend place value understanding to whole numbers within 10,000. a. Read and write whole numbers using base-ten numerals, number names, and expanded form. b. Compose and decompose whole numbers. c. Estimate quantities by reasoning about their location on a number line, their relationship to benchmark numbers, and rounding to nearest 10 or 100. d. Compare two whole numbers by reasoning about the values of the digits and the location of the numbers on a number line. Record the results of comparisons with the symbols >, =, and <.

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