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Andy Mikula

Teacher, programmer, ...and more? @andymikula

Long Division

Adventures in Place Value and Front-End Estimation

7237 divided by 6.

Eyebrows raised, colleagues and students look on as I reach for a piece of scrap paper instead of a calculator.

Divide.

Multiply.

Subtract.

Bring the next digit down.

Of course, their calculator has already given them "the answer". But they don't see the numbers like I do.

They don't see the dividend, treated not . . .

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April 09, 2015

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