How do you solve #90-:6+4*8-19#?

1 Answer
Aug 10, 2016

Answer:

#18#

Explanation:

Count the number of terms first.
Each one must simplify to a single answer and the answers can be added or subtracted in the LAST step.

#color(red)(90-:6)color(blue)(+4xx8) color(magenta)(-19)" has 3 terms"#

=#color(red)(15)color(blue)(+32) color(magenta)(-19)#

=#18#

Notice that we can work in different terms at the same time.
The calculations within different terms are independent of each other.