1.	6 + 2 × 7 - 4 = _________
		A.	24	B.	16
		C.	52	D.	12
		Hint
	2.	Name the operation that should be performed first in the expression 9 + 5 × (6 - 1).
		A.	multiplication	B.	division
		C.	addition	D.	subtraction
		Hint
	3.	Insert parentheses to make the equation 9 + 6 × 2 ÷ 3 - 1 = 12 true.
		A.	9 + 6 × 2 ÷ (3 - 1) = 12
		B.	(9 + 6) × 2 ÷ 3 - 1 = 12
		C.	(9 + 6 × 2) ÷ 3 - 1 = 12
		D.	9 + (6 × 2) ÷ 3 - 1 = 12
		Hint
	4.	What is the value of 6[(7 + 4) - 2(5 - 3)]?
		A.	42	B.	48
		C.	88	D.	72
		Hint
	5.	Simplify
		A.	36	B.	12
		C.	3	D.	27
		Hint