order of operations

Solve the following:
(2 + 7 - 1) ÷ 2²

• 16
• 2
• 72.25
• 8.75

13 - 2 x 4 =

• 4

• 24

• 5

• 44

16 ÷ 4 + 14 =

• 34

• 18

• 10

• 2

7 - 4 + 4 =

• 15

• 17

• 1

• 7

12 ÷ 4 x 2 =

• 4

• 16

• 6

• 2

2 + (9² - 4)

• 16
• 77
• 79

6 + (4)3

• 18
• 30
• 13
• 42

(10 + 2) ×10-3

• 145
• 27
• 117
• 53

90 - 5² × 3

• 15
• 240
• 195

What is the first operation you need to perform in the problem shown?

• addition
• subtraction
• parenthesis
• exponents