Evaluate the Expression: 2-5×3+4 Using Order of Operations

Question

25×3+4= 2-5\times3+4=

Video Solution

Solution Steps

00:00 Multiplication and division come before addition and subtraction, so we'll start with them
00:11 Let's solve the marked part
00:17 We're left with only addition and subtraction
00:19 Addition and subtraction are at the same level, so we solve from left to right
00:24 And that's the solution!

Step-by-Step Solution

According to the rules of the order of arithmetic operations, we begin by enclosing the multiplication exercise inside parentheses:

2(5×3)+4= 2-(5\times3)+4=

We then solve the said exercise inside of the parentheses:

5×3=15 5\times3=15

We obtain the following:

215+4= 2-15+4=

Lastly we solve the exercise from left to right:

215=13 2-15=-13

13+4=9 -13+4=-9

Answer

-9