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# Exercise for the mind

Hoping everyone will chime in on this one.

by on Mar. 3, 2013 at 1:23 AM
Replies (11-15):
by Maple on Jun. 29, 2014 at 3:24 PM

Checked with my son the brain, and he agreed with me.  He has always been good in math and is now an accountant.

7 + ( 7 / 7 ) + ( 7 x 7 ) - 7 =  50

7   +      1       +     49   -  7   =  50

8            +     49   -   7   =  50

57          - 7        =   50

50 = 50

by Fabulous Trainee on Jul. 20, 2014 at 10:17 AM

I respectfully disagree, the way it is written does not show any parenthesis that we would consider first, therefor it would be done in the order shown and the correct answer is 56. What does the rule say when there are no paranthesis? Where do we asssume they go. I have always sucked at math......

Quoting mapleleafwoman:

Checked with my son the brain, and he agreed with me.  He has always been good in math and is now an accountant.

7 + ( 7 / 7 ) + ( 7 x 7 ) - 7 =  50

7   +      1       +     49   -  7   =  50

8            +     49   -   7   =  50

57          - 7        =   50

50 = 50

by Maple on Jul. 20, 2014 at 4:23 PM
PEMDAS - rules of order in math
Parentheses
Exponents
Multiplication
Division
Subtraction
by Fabulous Trainee on Jul. 23, 2014 at 8:58 PM

This is why I do not work with numbers or do any computer programming. I don't understand at all! LOL

Quoting mapleleafwoman: PEMDAS - rules of order in math Parentheses Exponents Multiplication Division Addition Subtraction

by Maple on Jul. 23, 2014 at 9:53 PM
Parentheses are always calculated first. We all seem to agree on this but there aren't any. If none, look for exponentials. In this equation, the first thing we do is the multiplication, then division. Next you do the addition followed by any subtraction.

I don't ever remember being taught the term Pemdas, but it always stuck in my brain to do multiplication and division first.