Order of operations (PEMDAS)

What is the correct order of operations in mathematics?

Which operation should be performed first in the expression: 3 + 4 * 2?

Simplify the expression: 6 + 3 * 2 - 4 ÷ 2

Which operation should be performed first in the expression: 5 - (2 + 1)?

Simplify the expression: 2 + 3 * (4 - 1)

Which operation should be performed first in the expression: 8 ÷ 2 + 4 * 3?

Simplify the expression: 12 - 3 * 2 + 4 ÷ 2

Which operation should be performed first in the expression: 2 * (3 + 4) - 5?

Simplify the expression: 5 + 2 * (6 - 3)

Which operation should be performed first in the expression: 10 ÷ (2 + 3) * 4?

Simplify the expression: 8 - 2 * (5 + 1)

Which operation should be performed first in the expression: 4 + 3 * 2 - 6 ÷ 3?

Simplify the expression: 10 - 2 * 3 + 8 ÷ 4

Which operation should be performed first in the expression: 6 + (2 - 1) * 3?

Simplify the expression: 4 + 2 * (5 - 3)