Order of operations review

In PEMDAS, what does the M stand for?

• Masterful

• Mad

• Math

• Multiplication

What would be my first step to simplify?
3 + 4 x 6 - 4 

• addition

• multiplication

• subtraction

• exponents

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

PEMDAS only works if....

• You add then subtract

• You subtract then add

• add or subtract right to left

• add or subtract left to right

• 70

• 700

• -70

• -700

• -4

• 4

• -100

• 100

-2 + 9

• -11

• -7

• 7

• 11

8 - 9 =

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

• Subtraction

• Division

• Multiplication

• Addition