Order of Operations Review

Which operation would you do first in the following equation?
10 - 4 ÷ 1 · 5

• Subtraction
• Division
• Multiplication
• Addition 

Which operation would you do first?
( 12 + 10) ÷ 10 · 14 - 6

• Division
• Multiplication
• Addition
• Subtraction

Which operation would you do first?
10 - 7 + 8 ÷ 1

• Subtraction
• Addition
• Division
• Multiplication

Which operation would you do first?
10 - ( 9 + 3 ) ÷ 2

• Subtraction
• Addition
• Division
• Multiplication

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

What does 3² mean?

• 3 x 2
• 3 x 3
• 2 x 2 x 2

Which statement is true?

• You always multiply before you divide
• You always add before you subtract
• If two numbers are next to each other, like 3(2) that means its 32.
• You multiply and divide from left to right

12 ÷ 3 x 4
What do you do first?

• 3 x 4
• 12 ÷ 4
• 12 ÷ 3

True or false:
Addition ALWAYS comes before subtraction.

• True
• False

2 x 9 ÷ 3 =

• 5
• 7
• 8
• 6