1.	Estimate 25.412 - 6.93 by rounding.
		A.	20	B.	19
		C.	18	D.	17
		Hint
	2.	Find the least common denominator for and
		A.	15	B.	5
		C.	10	D.	50
		Hint
	3.	Express in simplest form.
		A.		B.
		C.		D.
		Hint
	4.	Estimate 78.3 + 23.1 by rounding.
		A.	100	B.	80
		C.	101.4	D.	90
		Hint
	5.	Which fraction is when written in simplest form?
		A.		B.
		C.		D.
		Hint
	6.	Estimate 5.21 - 1.9 by rounding.
		A.	6	B.	10
		C.	3	D.	13
		Hint
	7.	Estimate 6.8 - 2.5 by rounding.
		A.	14	B.	0.4
		C.	4	D.	10
		Hint
	8.	Write as a mixed number.
		A.		B.
		C.		D.
		Hint
	9.	Write as a mixed number.
		A.		B.
		C.		D.
		Hint
	10.	Write as a mixed number.
		A.		B.
		C.		D.
		Hint