Question

Which expression completes this equation?
20 ÷ 4 + 2 • 8 = ?



A.20 ÷ 6 • 8

B.[(6 – 2) + 3] • 3

C.18 • 2 – 10 ÷ 5

D.16 – [3 + (4 – 1)]

Answer 1

b

Answer 2

work out the division and multiplication first . Then do the add.

Answer 3

Oh ok

Answer 4

@12daughter34
Please don't give direct answers

Answer 5

lol

Answer 6

simplify it this way to get one number
Then see which one of the options gives you that number

Answer 7

ok let me do that

Answer 8

ok

Answer 9

so first you do 20 / 4 then 2 times 8.

Answer 10

oh ok ok

Answer 11

what do you get for those 2 calculations?

Answer 12

i do it all together

Answer 13

?????

Answer 14

20 divided by 4 = what?
2 times 8 = what?

Answer 15

5 and 16

Answer 16

correct now you add these together 5 + 16 = 21

Now we need to find which option gives 21

Have you heard of PEMDAS - which gives you the order of operation for doing problems like this?

Answer 17

yes i have heard that before

Answer 18

ParenthesesMultiplyDivideAddSubtract
that is why we did the multiply and divide before the add

Answer 19

oh ok

Answer 20

Now if we look at option 2 we have parentheses inside other parentheses. In a case like this we workout the INSIDE ones first.

Answer 21

* Option B i meant

Answer 22

hehe ok

Answer 23

[(6 – 2) + 3] • 3

we work out the 6 -2 first . 6 - 2 = 4
So it is
[4 + 3] . 3

Answer 24

Now work out what is in the square brackets first then multiply by 3
what do you get?

Answer 25

21

Answer 26

right
Therefore that is the correct option becuase our original expression equalled 21.

Answer 27

B is the answer

Answer 28

yessss thank you love

Answer 29

yw

Answer 30

have a nice day

Answer 31

you too