Order of Operations

What is the correct order of operations?

• Work from left to right

• Parentheses, Exponents, Multiply & Divide, Add & Subtract

• Add & Subtract, Exponents, Multiply & Divide,Parentheses

• Parentheses, Exponents, Add & Subtract, Multiply & Divide

True or false: all multiplication must be simplified before any division

• True

• False

True or false: all addition must be simplified before any subtraction

• True
• False

What are the steps to simplify the following expression?

 $50-16\div2$  

• add, multiply

• subtract, divide

• divide, subtract

• subtract, multiply

Find and explain the error.  
 5 - 3 + 2
   5 - 5
     0

• There is no error.

• Addition was done first and you should have subtracted first

• There is a subtraction error

Which problem has a solution of 24?

• $-6+6\left(3\right)$

• $-8+4\left(9-1\right)$

• $-10+2\left(2\right)$

• $7+1\left(11-8\right)$

Simplify

 $8-30+25$  

• 47

• -47

• 3

• -3

Simplify

 $8+\left(-4\right)\div4$  

• -7

• 1

• -1

• 7

Simplify

 $-3\left(-5\right)-16$  

• -8

• 1

• -31

• -1

Simplify

 $2+\left(9^2-4\right)$  

• 16

• 87

• 79

• 24