Composing and Decomposing Numbers
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Rationale: Students apply knowledge of place value by building numbers using standard and expanded form.
CCSS: 2.NBT.A.1b Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.g. 706 equals 7 hundreds, 0 tens, and 6 ones.
Other CCSS for which this activity can be adapted:
1.NBT.B.2b,c Understand that the two digits of a two-digit number represent amounts of tens and ones.
3.NBT.A.1 Use place value undersanding to round whole numbers to the nearest 10 or 100.
