Solve -5+3(9+1): Order of Operations Practice Problem

Question

$-5+3(9+1)=$

00:00 Solve

00:03 Always solve parentheses first

00:08 Between a number and parentheses there is always multiplication

00:11 Always solve multiplication and division before addition and subtraction

00:17 Let's continue solving

00:23 And this is the solution to the question

First, we solve the exercise within the parentheses:

$9+1=10$

Now we obtain the exercise:

$-5+3\times10=$

According to the order of operations, we solve the multiplication exercise:

$3\times10=30$

We obtain:

$-5+30=$

We use the substitution property:

$30-5=25$

$25$