integers

What is the first step in solving this problem:
-12 ÷ 6(-3) + 8

• multiplication
• addition
• division
• subtraction

(9 + 39) ÷ (11 - 5) = 

• 17
• 14
• 9
• 8

Solve the following:  
8 + (-4) ÷ 4

• -7
• 1
• -1
• 7

Solve the following:
3 + 27 ÷ (-3)

• -6
• -10
• 10
• -12

2 + (9² - 4)

• 16
• 77
• 79
• 154

3 x (2 + 5) - 3/3 =

• 10

• 20

• 18

• 15

8 + 24 / (2 x 6) - 4

• 92

• 76

• 11

• 6

Which part of the expression should be calculated fist?

3 + (17 x (4 + (5 x 6)))

• 3 + 17

• 17 x 4

• 5 x 6

• 4 + 5

3 x 8 - (9 - 7)³

• 16
• 18
• 0

40 - 2⁴ + 8

• 40
• 32
• 24
• 42