1.	Estimate 21% of 75.
		A.	5	B.	15
		C.	20	D.	10
		Hint
	2.	Estimate 50% of 23.
		A.	12	B.	18
		C.	15	D.	9
		Hint
	3.	At Main Street Elementary, 75% of the students have a pet. About how many students at Main Street Elementary have a pet if the school enrollment is 405?
		A.	300	B.	200
		C.	100	D.	400
		Hint
	4.	Estimate 72 out of 143 as a percent.
		A.	60%	B.	65%
		C.	40%	D.	50%
		Hint
	5.	Estimate the percent of the shaded area.
		A.	75%	B.	55%
		C.	65%	D.	45%
		Hint