1.	Find 623 − 509.
		A.	14	B.	124
		C.	114	D.	24
		Hint
	2.	Find 540 − 350.
		A.	110	B.	200
		C.	190	D.	210
		Hint
	3.	Find 872 − 678.
		A.	194	B.	106
		C.	294	D.	206
		Hint
	4.	Find 418 − 275.
		A.	203	B.	243
		C.	143	D.	683
		Hint
	5.	Hiroko has $87 in her bank account. She buys her friend a necklace for $19. How much money does she have left?
		A.	$70	B.	$69
		C.	$72	D.	$68
		Hint