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Sunday, January 27, 2008

5 Times 2 = 7?

Using only basic arithmetic operations make 7 out of five '2's.


2    2    2    2    2 = 7


You can use '+', '-', 'x', or '÷' between the '2's.

9 comments:

Dave said...

2*2*2-(2/2)

Anonymous said...

2 + 2 + 2 + 2/2 = 7

Anonymous said...

you cant use parenthesis,, you should solve it directly,, the right answer is

2÷2+2+2+2 = 7

MDAS Rule!! Multiply first then Divide then add the Subtract

Bon said...

It doesn't say there has to be an operator between every number. In that case an alternative solution is 22 / 2 - 2 - 2 = 7.

22/2 = 11. Minus 2 = 9. Minus 2 = 7.

Conforms to MDAS too.

Anonymous said...

2*2*2-(2/2) is still
2*2*2-2/2 without the parentheses and still works under MDAS.

Anonymous said...

Order of operations is important here. PEMDAS. multiply divide add subtract. 2/2 + 2 + 2 + 2 = 7

Anonymous said...

2/2+2+2+2= 7

frogs0991 said...

you could also use...

2/2+2*2+2

Anonymous said...

frogs0991's answer gets 8... haha