Cindy says she found a shortcut for doing multiplication problem. when she multiplies 3x24 she says 3x4is 12 or one ten and 2 ones. then there's just 2 tens left in 24, so add it up and you get. 3 tens and 2 ones. do you think Cindy's shortcut works? explain your thinking in words, and justify your response using model or partial products
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