How do you simplify 40 + 40 times 0 + 1 using PEMDAS?

1 Answer
Aug 14, 2016

41

Explanation:

color(magenta)(40)color(blue)( + 40 times 0)color(red)( + 1) " there are 3 terms"

Simplify each term to a single answer and then add or subtract in the last line.

color(magenta)(40)color(blue)( +0)color(red)( + 1)

=41

A common wrong answer is 1, obtained form simply working from left to right.

40+40 = 80

80xx0 = 0

0+1 = 1

In this case addition has been done before multiplication which is a more powerful operation and should be done first.