1.	Determine which equation is true by replacing the variable with 4.
		A.	5 + x = 5	B.	5 + x = 9
		C.	5 + x = 4	D.	5 + x = 10
		Hint
	2.	Identify the solution of 84 ÷ r = 12.
		A.	7	B.	6
		C.	21	D.	72
		Hint
	3.	Which of the numbers is the solution of x ÷ 2 – 4 = 10?
		A.	26	B.	28
		C.	32	D.	30
		Hint
	4.	Solve 3 = 9 – n using mental math.
		A.	7	B.	6
		C.	9	D.	3
		Hint
	5.	For which equation is 5 the solution?
		A.	3 – x = 2	B.	x – 3 = 2
		C.	x + 3 = 5	D.	5 + x = 5
		Hint