Wednesday, February 10, 2010

Use numbers 0-9 to make a true equation?

_+_+_+_+_+_+_+_=_ _Use numbers 0-9 to make a true equation?
0+1+2+4+5+7+8+9=36





The way I figured it out, I began by adding everything up and getting 45. I convinced myself by removing two digits, a 4 and another digit, that the sum would most likely be in the thirties. So I knew that the sum would be 30 something.





I added up all of the digits less the 3 and got 42





42 less the other digit = 30 + that digit


42 - x = 30 + x


12 = 2x


x=6





So add all of the digits except 3 and 6 = 36!!!Use numbers 0-9 to make a true equation?
hi again, same question again on my hw





is it daily problems?

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