1.	What is the exact value of the area of a circle with a diameter of 6 cm?
		A.	108 cm2	B.	9 cm2
		C.	27 cm2	D.	36 cm2
		Hint
	2.	Which expression cannot be evaluated exactly on a calculator?
		A.	× 6.35 × 4.21	B.	8.33
		C.	× 9.852	D.	4 × 2.1 × 6.3 + 2.12
		Hint
	3.	How many decimal places are there in the exact answer for the expression 3 × 1.52 + 3.375?
		A.	3	B.	5
		C.	4	D.	6
		Hint
	4.	To approximate the area of a triangle with a base of 19.8 cm and a height of 9.7 cm, a student evaluates the expression × 20 × 10. How will the student’s approximation compare to the actual value for the area?
		A.	slightly lower	B.	significantly lower
		C.	significantly higher	D.	slightly higher
		Hint
	5.	Which of the following is not an approximation for the area of a rectangle with length 6.1 cm and width 12.1 cm?
		A.	73.81 cm2	B.	72.6 cm2
		C.	72 cm2	D.	73.1 cm2
		Hint