Order of Operations

Order of Operations

Why are parenthesis important?

Poll

Which one is correct?

• 5+4x7=63

• 5+4x7=33

What do you think will happen if I add parenthesis?

(5+4)x7

5+4x7

5+(4x7)

Let's try to translate a verbal expression to a numerical expression:

The sum of 2 and 5 multiplied by 6

The sum of 2 and 5 multiplied by 6

The word sum, differrence, product, and quotient imply parenthesis

(2 + 5) x 6

Fill in the Blank

56 divided by the difference between 15 and 8.

 $\$ 

Fill in the Blank

The sum of 3 and 4 multiplied by the sum of 2 and 9

Fill in the Blank

Practice evaluating expressions:

 $17+\left(21+3^2\right)\div\left(5\times2\right)$  

Fill in the Blank

 $5^2\div\left(48-43\right)\times\left(2+3\right)$  

Fill in the Blank

 $\left(4^2-8+2\times10\right)\div\left(3^2-5\right)$  

Fill in the Blank

 $\left(8\times\left(64\div4^2+2\right)\right)+6^2\div4$  

Poll

My feelings about order of operations are...

• Expert

• Good at it

• Still need practice

• I need some one on one help with Mrs. Handzel