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Tens and ones

Our base 10 number system

These grade 1 math worksheets ask students to break 2-digit numbers (1-99) into the corresponding number of "tens" and "ones"; the emphasis is on understanding our base ten number system.

More place value & rounding worksheets

Explore all of our place value worksheets, from base ten blocks to 6 digit numbers in expanded form, and our rounding worksheets, ranging from rounding to the nearest 10 to rounding in the millions.

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