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Numbers up to 100 - 1st Grade Math
Students develop the understanding of place value concepts by learning that a 2 digit number is a number made up of tens and ones. In Numbers up to 100 Worksheet, students work for numbers from 51 to 99 and break them up as tens and ones.
Common Core Alignment
1.NBT.2Understand that the two digits of a two-digit number represent amounts of tens and ones. Understand the following as special cases: