
	1.	Evaluate 21².
		A.	422	B.	421
		C.	442	D.	441
		Hint

	2.	Which is not a perfect square?
		A.	48	B.	144
		C.	100	D.	169
		Hint

	3.	Find .
		A.	17	B.	25
		C.	15	D.	22
		Hint

	4.	Find
		A.	98	B.	14
		C.	16	D.	13
		Hint

	5.	Which number is a perfect square?
		A.	324	B.	326
		C.	327	D.	325
		Hint