How do you calculate this sum?

Question

7 - [13 - {-2 - 6 (6 of -5)}] = _________

Answer 1

[01]
7-[13-{12-6(6 of -5)}]
=7-[13-{12-6(-30)
=7-[13-{12+180}
=7-[13-192]
=7-[-179]
=7+179
=186

Answer 2

Break it down-

You always have to do the (brackets) [ ] 1st:
This is the problem you are dealing with [13 - {-2 - 6 (6 of -5)}]

So within that you must start with the { } Next:
This is then the problem you are dealing with {-2-6 (6 of -5)}

Now it is starting to look a little easier-

Next you have to break it down more to the ( ):
That leaves you with (6 of -5)

And your answer to that is (-30)

Now insert that into the problem so it would then look like:

7 - [13 - {-2 - 6 (-30)}] =

Now we go backwards the the problem before this one:

{-2-6 (-30)} that looks easier

Do the calculations and you get : 178

Put that problem 7 - [13 - 178]

Then do the brackets [13 - 178]

You get -165

What your left with is 7 - -165

and i think you can take it from there..... :)

Just in case not the answer is 172

Answer 3

Following Order of operations: EPMDAS
Since there are no exponets we first do Parentheses

Step 1: 7 - [13 - {-2 - 6 (6 of -5)}]

Then we multiply

Step 2: 7 - [13 - {-2 - 6 (-30)}]

Then in the inner Parentheses we add

Step3: 7 - [13 - {-2+180}]

Now we Subtract

Step 4: 7 - [13 - {178}]

Subract (remember when subtracting a negative number we are really adding)

Step 5: 7 - [-165]

172

There is the proof:
hope this helps. Its my best work considering it was in my head while stuck in traffic.

Answer 4

----- 7– [13 – {– 2– 6(6 of – 5)}] ---------- of means multiplication i.e. 6 × (– 5) = – 30
=7– [13– {–2– 6(– 30) ----------- (– 6)× (–30) = + 180
=7– [13– {–2+180} --------- –2 + 180 = 178 but outside bracket (– )sign is there so after opening bracket +180 will become – 178
= 7– [13– 178] ----------- 13 – 192 = – 179 but again – sign outside bracket.
= 7– [– 165]
= 7+165
= 172

Answer 5

Solve first the expression inside a grouping symbol:
"inside ,, outward! "

7-[13-{12-6(6 of -5)}]
7-[13-{12-6(-30)
7-[13-{12+180}
7-[13-192]
7-[-179]
7+179
186

Answer 6

7 - {13 - [-2 - 6 (6 of -5)]}
= 7 - {13 - [-2 - 6 (-30)]}
= 7 - {13 - [-2 - (-180)]}
= 7 - {13 - [-2 + 180]}
= 7 - {13 - 178}
= 7 - (-165)
= 7 + 165
= 172

Answer 7

do the innermost brackets FIRST, then work OUTWARD.

7-[13-{-2-6(6*-5)}]
7-[13-{-2-6*(-30)}]
7-[13-{-2+180}]
7-[13-178]
7+165

and sarkar05, you put 12 instead of -2

answer=172

Answer 8

Order of operations:


7 - [13 - {-2 - 6 (6 of -5)}]
7-[13-{-2-6 (-30}]
7-[13-{-8(-30)}]
7-[13-{240}].....................
......

Answer 9

EASY peeesyy.


first you do the brackets.. TEH MOST INNER ONES.
do 6of -5 and then multiplythat by 6 and do -2- the answer and then subtract 13 from the answer.. and then subtract 7 and then you got it.

Answer 10

-2