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Mathematics, 08.12.2019 07:31 omar2334

Cindy says she found a shortcut for doing multiplication problems. when she multiples 3 x 24,she says,’
“3x4 is 12,or,1 ten and 2 one.” 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 shortcut works?

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