To find 19+(11+37. lennie added 19 and 11. then he added 37 to the sum. what property did he use

asked Jan 3, 2016 208k views

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$a+(b+c)=(a+b)+c\ it's\ associative\ property\\------------------------\\\\19+(11+37)=(19+11)+37=30+37=67$

Daniel Neel answered Jan 10, 2016

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