Question #1d80c

2 Answers

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

Sep 20, 2016

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
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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
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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
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