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###### Fraser Cameron

601 Points# I'm stuck on the maths for C# basics the question is 8 * (7+8) % 5 + 6/2

I thought you would do the parenthesis first leaving 15 between them, multiplied by 8 giving the value of 120, then taking 5 away you are left with 115, then dividing 6 by 2 is 3, adding 115 and 3 together gets 118 but it is wrong. I'm not sure how I'm messing up the order but any help would be appreciated

###### Arturs Dubra

4,748 PointsI did exactly like Keanu suggests, it is fast and easy way how to handle this problem.

## 3 Answers

###### Jennifer Nordell

Treehouse TeacherIt's not subtracting by 5 .,.. it's getting the mod of 120 and 5. So it looks like this.

8 x (7 + 8) % 5 + 6 /2 =

8 x 15 % 5 + 6/2 =

120 % 5 + 6/2 =

0 + 6 / 2 = *because 120 divided by 5 has a remainder of 0 aka it's evenly divisible by 5*

0 + 3 =

Final answer: 3

Happy coding!

###### Anjali Pasupathy

28,883 PointsHere's a trick for the modulo!

7 + 8 is 15, which is divisible by 5. Because of this, multiplying that number by any other integer would still create a number divisible by 5. Because 8 * (7 + 8) is going to be divisible by 5, modding that number by 5 can only result in 0. That means that 8 * (7 + 8) % 5 is going to evaluate to 0, so you only need to worry about 6/2.

###### Fraser Cameron

601 Pointshey thanks you two are live savers ahaha

###### Anjali Pasupathy

28,883 PointsYou're welcome!

## Keanu Barnard

2,018 Points## Keanu Barnard

2,018 PointsIf you want this solved for you the lazy way, you can try typing in the equation into the REPL by typing csharp in the console with workspaces May have already known this but i guess it may help haha