This document shows a step-by-step process for decomposing the number 45 into its place value components and then recomposing it. 45 is broken into 40 and 5, then 30 and 10 and 5, and finally 10, 10, 10, 10, 2, and 3. The document suggests using place value cards to decompose and recompose numbers.
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Deconstructing Numbers Grade 2
1. My Thinking Sheet
How can I take a number apart and
then rebuild it ?
45
40 5
30 10 5
30 10 2 3
10 10 10 10 2 3
Your Turn... (Use the Power of Ten Place Value Cards)
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