How do you simplify 125-43+13 using PEMDAS?

2 Answers
Mar 21, 2016

95

Explanation:

According to PEMDAS you will first add values so
-43+13=-30
then subtract
125-30=95

Aug 2, 2016

95

Explanation:

Adding and subtracting with positive and negative values often leads to confusion.

Note that a sign in front of a number applies ONLY to that number.

So 18 - 7 + 5 does NOT mean the same as 18 - (7+5)
The answers for these are 16 and 6

The easiest way to avoid confusion is to re-arrange the numbers we are allowed to do (which according to the commutative law).

Place the additions at the front of the expression and the subtractions at the end.

125 -43 +13 is better understood as:

125+13 -43

=95