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Blackout Math

Mathematicians can't allow individual scholars, regions or even nations to make up their own rules for the proper order of calculations. It would mean complete disorder.

We have an established order for calculations, and her name is Aunt Sally, or rather, "Please excuse my dear Aunt Sally." She stands for the calculating order of parentheses first, followed by exponentiation, multiplication or division, and lastly addition or subtraction. When all priorities are equal, Aunt Sally says calculate from left to right.

In the following challenges, two boxes need to be blacked out in order to make the equations true, But which two?


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