SOLUTION: is there a short cut in solving the result of 125 cubed minus 125 squared. my grandson was in a math contest and someone solved the problem almost instantly.
How is that done?
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How is that done?
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Question 571740: is there a short cut in solving the result of 125 cubed minus 125 squared. my grandson was in a math contest and someone solved the problem almost instantly.
How is that done? Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! is there a short cut in solving the result of 125 cubed minus 125 squared. my grandson was in a math contest and someone solved the problem almost instantly.
How is that done?
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= 15625*124
= 62500*31
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Or
=
I could do it either way
