1.	Find the difference.
		A.	69	B.	63
		C.	57	D.	59
		Hint
	2.	Find the difference.
		A.	28	B.	22
		C.	20	D.	18
		Hint
	3.	Find the difference.
		A.	70	B.	80
		C.	79	D.	82
		Hint
	4.	Find the difference.
		A.	21	B.	24
		C.	19	D.	15
		Hint
	5.	Find the difference.
		A.	15	B.	17
		C.	12	D.	13
		Hint