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What is Reading and Rounding Whole Numbers about?
Place value is used to write whole numbers with digits 0-9 in groups of thousands, millions, billions, etc. Numbers are read out without "and" between amounts in each group. Commas separate groups of three or more digits. Rounding estimates numbers by finding the closest ten, hundred, thousand etc. by increasing or keeping the underlined place value digit depending on the digit following it. Estimating involves rounding numbers before solving a problem rather than rounding the final answer.
- Author
- Mathnasium of Bentonville
- Language
- EN