order of operations

2 + (9² - 4)

• 16
• 77
• 79

90 - 3 x 5² 

• 15

• 240

• 195

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

3 x 2²  + 24 ÷ 8

• 15

• 10.5

• 4.5

• 45

• 7

• 3

• 12

Simplify!

• 14

• -2

• 5

• 22

Simplify!

• 5

• 9

• -18

• -9

• Sallie

• Brian

• I'm not sure

• Both

• 14

• 15

• 20

• 3