1.	Find 25% of 20 mentally.
		A.	4	B.	5
		C.	10	D.	80
		Hint
	2.	Find 60% of 30 mentally.
		A.	12	B.	50
		C.	18	D.	24
		Hint
	3.	Estimate 60% of 92.
		A.	48	B.	42
		C.	60	D.	54
		Hint
	4.	Find of 99 mentally.
		A.	9	B.	33
		C.	297	D.	11
		Hint
	5.	Estimate 11% of 60.
		A.	3	B.	10
		C.	600	D.	6
		Hint