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Trading Ones for Tens
When you have 10 ones cubes, you can trade them for 1 tens rod. 10 ones = 1 ten. This is called regrouping or bundling.
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Math — Place Value: Tens and Ones
When you have 10 ones cubes, you can trade them for 1 tens rod. 10 ones = 1 ten. This is called regrouping or bundling.