Question

insert grouping symbole in the expression so that the value of the expression is 14
1. 9+39+22/11-9+3

Answer 1

There xD

Answer 2

@petiteme yeah

Answer 3

\[\frac{ 9+39+32 }{ 11-9+3}\]

Since the numerator is all addition, you can just add it all.
So it'll be

\[\frac{ 70 }{ 11-9+3 }\]

Look at the denominator. What if you group it like this:

11-(9+3)

Will you get 12? Or if you group it like this:

(11-9) + 3

Answer 4

okay let me solve it now

Answer 5

Okay. I'll wait ^_^

Answer 6

@petiteme i don't get it

Answer 7

Okay lemme help you out.

To get 14 as an answer, try solving this first.

\[\frac{ 70 }{ (11-9) + 3 }\]

That's out first trial of grouping.

Answer 8

okay

Answer 9

70/23

Answer 10

Wrong. The first thing to do is perform the operation inside the parenthesis :)

Answer 11

okay

Answer 12

I'll wait ^_^

Answer 13

i am so confused

Answer 14

Okay. Do (11-9) and then when you get the answer, add it to 3.

Answer 15

5

Answer 16

Good! Then 5 will be your denominator right?

\[\frac{ 70 }{ 5 }\]

So 70 divided by 5 is 14 right?

Answer 17

yeah it is

Answer 18

So the grouping that you need is

\[\frac{ (9+ 32) + 22 }{ (11-9) + 3 }\]

Answer 19

okay thanks

Answer 20

You're welcome :) I hope I helped you out.

Answer 21

but it doesn't give 14 at the end when u solve it