Solve: 5×5×2-12÷4 Using Order of Operations

Question

Solve the following problem using the order of operations:

$5\times5\times2-12:4=$

00:00 Solve the following expression

00:03 Always solve multiplication and division before addition and subtraction

00:06 Proceed to solve one operation at a time

00:13 Calculate the multiplication

00:20 Calculate the division and only then continue

00:28 Here is the solution

According to the order of operations rules, we first enter the multiplication and division exercises into parentheses:

$(5\times5\times2)-(12:4)=$

Now let's solve the exercises in parentheses from left to right:

$5\times5=25$

$25\times2=50$

$12:4=3$

We obtain the following exercise:

$50-3=47$