Pre-sec, Order of Operations

2 + (9² - 4)

• 16
• 77
• 79

(10 + 2) ×10-3

• 145
• 27
• 117
• 53

90 - 5² × 3

• 15
• 240
• 195

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

• addition
• multiplication
• subtraction
• exponents

18 + (6 – 2) × 2

• 26
• 29
• 44
• 40

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

-2 ⋅ (3 + 8 ÷ 4)²

• -16
• 1.375
• 4
• -50

What would you solve first?
3 x 48 / (15 - 3)

• 3 x 48
• 48 / 15
• 15 - 3 
• 48-12

15 + 7 × 2 – 11 + 35=

• 38
• 251
• 53
• 50

What step would I do second ? (4-2) x 9 + 7 =

• multiplication
• subtraction
• addition
• dividing