1.NBT.B.2c – Decomposing tens and ones from 10 to 99

Decomposing tens and ones from 10 to 99


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1.NBT.B.2c

Understand the numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 refer to one, two, three, four, five, six, seven, eight, or nine tens (and 0 ones).

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