+ 2

# Operator Precedence Ruby evaluates a mathematical expression using an order of operations that is based on operator precedence.

What is the output of this code? 5-2*3+3 Solo learn gave the answer as 2. Following their explanation above it should have been -4 But as you can see it was'nt. And none of the values were in parenthesis If you agree with solo learn explain

24th Oct 2016, 5:23 AM
EMMANUEL NUOTAH TUONUO DERY
+ 2
Given : 5-2*3+3 First multiply: 5- (2*3) +3 we'll get: 5- 6 + 3 Second subtract: (5-6) +3 we'll get: -1+3 Third add: (-1+3) we'll get: 2 Hence, Answer: 2. Explanation: Simply follow the precedence rule. After multiplying (2*3) you MUST return back to the starting digit and do the next operation according to precedence. Which means you have to start from beginning after doing each operation.
31st Oct 2016, 9:26 PM
Ashutosh Tripathy
+ 1
So first comes the multiplication 5-6+3 then the addition 5-3 then the the subtraction 2 I think you may have added 6 and 3 to 9. However you should be adding -6 to 3 to get -3. I would recommend doing subtraction first to avoid any confusion, as subtraction and addition can be done in any order.
24th Oct 2016, 6:58 AM
lawrence shaw
0
Remember that we go from left to right. So as you read first is multiplication/divide. We have a multiplication 2*3 = 6 So now we have 5 - 6 + 3 Then is the addition/substraction, but don't forget that we go from left to right. So 5 - 6 = -1 No we have -1 + 3 = 2 I hope it helped you.
24th Oct 2016, 7:52 AM
Elias Papachristos
Hot today
Just how???