Review Multiply By A 2 Digit Number Then Estimate

by Nancy Pires on Oct 13, 2013

When the factors are not multiples of 10, then either multiply the factors using the standard algorithm OR simplify the problem by writing one of the factors in expanded form, then multiply each smaller/simpler problem, and finally...add all the partial products together for the final answer. To complete your work, estimate to check for a reasonable answer.

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