1.	Estimate the sum to the nearest ten. 626 + 187
		A.	800	B.	820
		C.	830	D.	810
		Hint
	2.	Estimate the sum to the nearest ten. 773 + 184
		A.	940	B.	950
		C.	960	D.	930
		Hint
	3.	Estimate the sum to the nearest hundred. 626 + 187
		A.	800	B.	700
		C.	600	D.	900
		Hint
	4.	Estimate the sum to the nearest hundred. 486 + 438
		A.	600	B.	900
		C.	800	D.	700
		Hint
	5.	Estimate the sum to the nearest hundred. 122 + 721
		A.	1,000	B.	700
		C.	800	D.	900
		Hint