Order of Operations

PEMDAS only works if....

• You add then subtract
• You subtract then add
• add or subtract right to left
• add or subtract left to right

15 x 19 + 18 ÷ 6 = 

• 250
• 199
• 400
• 288

(10 + 33 - 3) ÷ 8

• 13
• 3
• 5
• 11

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 - ( 9 + 3 ) ÷ 2

• Subtraction
• Addition
• Division
• Multiplication

Which operation would you do first?
2 · (15 - 2) ÷ 5

• Addition
• Subtraction
• Multiplication
• Division

What does 3² mean?

• 3 x 2
• 3 x 3
• 2 x 2 x 2

2 + (9² - 4)

• 16
• 77
• 79

(82 ÷ 2) × 3 – 17

• 206
• 100
• 106
• 5