How can you evaluate 72−16−59+73?

1 Answer
George C.
Jul 15, 2015

Choose a multiplier for each term to give them a common denominator, then add the numerators to get:

72−16−59+73=6318−318−1018+4218=9218=469

Explanation:

72−16−59+73

=(99⋅72)−(33⋅16)−(22⋅59)+(66⋅73)

=6318−318−1018+4218

=63−3−10+4218=9218=469

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