Order of Operation - Nested groups

In the mnemonic GEMDAS, what is the correct order of operations when simplifying expressions

• Groupings, Exponents, Multiplication, Division, Addition, Subtraction 

• Groupings, Exponents, Multiplication or Division, Addition or Subtraction 

• Groupings, Multiplication, Division, Addition, Subtraction 

• Groupings, Exponents, Multiplication, Addition,  Division, Subtraction 

What would be my THIRD step?

3 + 4 x 6 - 4 =

• addition
• multiplication
• subtraction
• exponents

Which operation is performed FIRST?
(13 - 1) + 4

• addition
• subtraction
• multiplication

What is the value of

(8 + 5) + 8 ÷ 4

• 13

• 16
• 4

• 15

Which operation will be performed SECOND?

(8 + 5) + 8 ÷ 4

• +8

• (8+5)

• 11

• / 4

What is the value of the following expression?

(2 x 5) + 18

• 48
• 20
• 28

Simplify the following expression:

20 − 6 x 3

• 18

• 12

• 2

Which step comes FIRST in the following problem:

6+7 (3 X 4) - 5

• Parenthesis First

• Addition

• Subtraction

• It does not matter

Simplify

13 + (5 x 4)

• 22

• 33

• 69

What is the value of

(10 - 4) x 12 - 5

• 67
• 42
• 43
• 68