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Mr. Moreno asked the class to solve 21 ÷ 0.6. First he asked them to estimate the quotient.
Mr. Moreno asked Kim to try using partial quotients to solve 21 ÷ 0.6.
“Do I have to keep the decimal point in there?” Kim asked. “I like how Chris thinks of the numbers as whole numbers.”
Chris reasoned, “When you multiply a number by ten, you move the decimal to the right one place. Why don't you just multiply the dividend 21 and the divisor 0.6 by ten in your head and move the decimal points one place to the right in the equation?”
