SOLUTION: Which property can help you to mentally evaluate 26(19)? Answer: Communative Property of Multipication

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Question 872312: Which property can help you to mentally evaluate 26(19)?
Answer: Communative Property of Multipication
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
19 = 20-1

So

26(19) = 26(20-1) = 26*20 - 26*1 = 520-26 = 494

I'm using the distributive property when going from 26(20-1) to 26*20 - 26*1