1.	Find 60% of 30 mentally.
		A.	24	B.	12
		C.	50	D.	18
		Hint
	2.	Estimate 60% of 92.
		A.	42	B.	48
		C.	54	D.	60
		Hint
	3.	Find 75% of 24 mentally.
		A.	32	B.	12
		C.	22	D.	18
		Hint
	4.	Find of 99 mentally.
		A.	11	B.	297
		C.	33	D.	9
		Hint
	5.	Estimate 11% of 60.
		A.	600	B.	6
		C.	3	D.	10
		Hint