Question

Question #1d80c

Answer 1

paranthesis first :)

Explanation:

`(7-5)*3 =>` first `(7-5) =2` then multiplication `2*3=6`

`18-5+3` from left to right `18-5 = 13+3 = 16`

`(19+4)-8 / 2` first `(19+4)` then `(8/2)` and finally subtraction

`23 - 8/2 = 23-4 = 19`

Answer 2

`6, 16, 19`

Explanation:

Count the number of terms in each expression first.

IN each term, do brackets first,
then multiply and divide
last add and subtract

`" "color(red)((7-5)) xx 3" "larr` all one term. Brackets first
=`" "color(red)(2) xx 3`
=`color(white)(xxxx)6`
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

`18-5 +3" "larr` there are 3 terms

Work left to right

`= 13 +3 = 16`

OR re-arrange the terms with the subtract at the end.

NOTE!! only 5 is being subtracted!! Do not add 5+3!

`18+3-5 = 16`
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
`color(red)((9+14))color(blue)(-8div2)" "larr` there are 2 terms - get two answers

=`color(white)(xxxl)color(red)(23)color(blue)(-4)" "` do 2 calculations, one in each term.

=`" "19`
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~