Teaching "Number Sense"

Jul 24, 2012 | Sharyland

This is the type of problem that can cause a real dread of math. Just the thought of the process and computations involved is enough to make one frustrated and annoyed. Multiplying fractions and mixed numbers! Ugh! Solving this problem will probably take a little division as well. Double ugh!

Yet there is a much simpler and elegant way to solve this without ever putting pen to the paper. All it requires is a little “number sense.”

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