What is the value of $2^3+8-:4*2+3$ ?

Question

1727 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2016-09-13T20:30:07

$15$

Count the number of terms first. Each term will simplify to to a single answer and they are only added or subtracted in the last line.

Within in a term - do brackets first, then the strongest operations (powers or roots), and then multiplication and division.

$color(purple)(2^3)color(red)( + 8div4xx2)color(blue)(+3)" "larr$ there are 3 terms.

= $color(purple)(8)color(red)( + (8xx2)/4color(blue)(+3)$

= $color(purple)(8)color(red)( + 4)color(blue)(+3)" "larr$ add from left to right

= $15$

What is the value of 2^3+8-:4*2+32^3+8-:4*2+3?