How do you use PEMDAS to simplify $5 times 2 + (6 - 7) + 16$ ?

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Answer 1 · 2016-07-11T21:27:33

25

Always count the number of terms first. For each term there must be a single answer which you will then add or subtract in the last line of working.

There are 3 terms here, so we need 3 answers

$color(blue)((5xx2)) + color(magenta)((6-7)) + color(orange)(16)$
The brackets are not necessary but they illustrate the point of 3 terms.

= $color(blue)10 color(magenta)(-1) +color(orange)16$

= $10+16-1 = 25$

How do you use PEMDAS to simplify 5 times 2 + (6 - 7) + 165 times 2 + (6 - 7) + 16?