Solve Mixed Operations: 100:2-10:2+3×4-6-5×2 Using PEMDAS

Question

$100:2-10:2+3\times4-6-5\times2=$

00:00 Solve

00:04 Always solve multiplication and division before addition subtraction

00:08 Each time we'll solve one operation and then continue

00:22 Now let's move to the next division

00:34 Now let's calculate the multiplication

00:47 Let's move to the next multiplication

01:00 Now let's continue solving according to proper order of operations

01:03 From left to right, one operation at a time and then continue

01:20 And this is the solution to the question

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

$(100:2)-(10:2)+(3\times4)-6-(5\times2)=$

Now let's solve the operations within the parentheses:

$100:2=50$

$10:2=5$

$3\times4=12$

$5\times2=10$

Now we get the expression:

$50-5+12-6-10=$

Let's solve the expression from left to right:

$50-5=45$

$45+12=57$

$57-6=51$

$51-10=41$