Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS Swift Basics Swift Operators Quiz: Operator Precedence

Posted by Joshua Nilsson
Joshua Nilsson
846 Points

I need help on operators! PLS help me!

I really need some tips for operators! This is for the math and how some like division have a higher precedence level then addition. PLS help me!

2 Answers

Jeff McDivitt
Jeff McDivitt
23,970 Points
Jeff McDivitt
Jeff McDivitt
23,970 Points

You would need to follow the order of operations

5 * 2 would be done first, then it would follow the normal left to tight fashion

5 * 2 = 10 then you would do 25 -10 = 15 + 5 would be 20

Joshua Nilsson
Joshua Nilsson
846 Points

Thanks!

Carter Chavez
Carter Chavez
3,973 Points
Carter Chavez
Carter Chavez
3,973 Points

Order of operations are:

  1. Parenthesis
  2. division and multiplication (from left to right)
  3. Addition and Subtraction (from left to right)

here's a link to Khan academy where they cover them. https://www.khanacademy.org/math/pre-algebra/pre-algebra-arith-prop/pre-algebra-order-of-operations/v/introduction-to-order-of-operations

Jeff McDivitt
Jeff McDivitt
23,970 Points
Jeff McDivitt
Jeff McDivitt
23,970 Points

Your question is very vague, what exactly do you need help with?

Joshua Nilsson
Joshua Nilsson
846 Points

I need help with finding the value of binary operators. For example: Find the value of x: let x = 25 - 5 * 2 + 5