OAS 3.N.2.4 Worksheets
OAS 3.N.2.4 (Oklahoma, 3rd Grade): "Recognize when to round numbers and apply understanding to estimate sums and differences to the nearest ten thousand, thousand, hundred, and ten." The worksheets below practice this standard. Each one is a free printable PDF with an answer key, comes in multiple versions, and can also be assigned digitally - no login or account needed.
3.N.2.4
