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can someone let me know how to break these down?
20 - 5 + 6 x (-7) - ((-8) / (-2)) = -31

and

-20 + 200 -100 - 50 x (-4) + (-5) x 8 = 240

I cannot get the answer no matter which way I try the sums
 Oct 9, 2013
 #1
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Ok, remember PEMDAS:

P-parenthesis
E-exponents
MD- multiply and divide (the order doesn't matter on these two)
AS- add and subtract ( the order of these two don't matter, either)

All equations should be solved in that order. So, if I have this problem:

2 + 5 * (2 + 4 * 6 / 2) - 3

Then I solve the things in parenthesis first, in PEMDAS order:

2 + 5 * (2 + 24 / 2) - 3

2 + 5 * (2 + 12) - 3

2 + 5 * 14 - 3

Then multiply:

2 + 70 - 3

Then add and subtract, in whichever order (though I prefer to add before subtracting, as I prefer multiplying before dividing):

72 - 3

69

There's the answer. All questions should be solved using PEMDAS order. (If you don't know what an exponent is, don't worry about it. If you do, sorry, but over the internet I have no idea how old you are )
 Oct 9, 2013
 #2
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Thanks for reply, I have been following bodmas rules but I still get wrong answer. Cannot get it right, driving me mad.
 Oct 9, 2013

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