Quiz Night

Oamo: Evaluate 9 • (3 + 4)

• 16

• 32

• 15

• 12

Isaac: Which operation is performed FIRST?

(13-1)+4

• addition outside of grouping symbol

• subtraction outside of grouping symbol

• multiplication by grouping symbol

Nephtys: Which operation is performed SECOND?

(13-1)+4

• addition +

• subtraction -

• multiplication x

• there is no error

• addition was done first and you should have subtracted first

• there is a subtraction error

Zhao: Solve for x
l 2x−1 l = 9

• x = 5 and x =-4
• x = 5 and x = -5
• Only x = 5
• No Solution

Mohamed: Solve the equation below:

• k = 152
• k = 176
• k = 5
• k = 27