综合套题七
45 ÷ 9 - 2 =	5 × (6 + 3) =	28 + (54 - 48) =	(64 - 61) × 2=
112 + 749 =	29 + 66 - 27 =	661 - 20 ÷ 5 =	2 × 8 + 818 =
5 × 6 - 15 =	545 + 298 =	39 + 49 =	435 - 199 =
36 - 27 =	444 + 398 =	72 ÷ (2 × 4) =	63 - 37 =
3 × (18 ÷ 9) =	575 + 18 ÷ 2 =	713 - 625 =	72 - 58 + 28 =
(28 + 53) ÷ 9=	1000 - 216 =	28 ÷ (76 - 72) =	295 - 279 =
895 + 7 × 8 =	18 ÷ 2 + 747 =	72 - 2 × 8 =	94 - (27 + 19) =
笔算下列各题（1、4小题要验算）
(1)    706 + 225 =		(2)    558 + 268 =
(3)    589 + 356 =		(4)    931 - 254 =
(5)    711 - 496 =		(6)    814 - 575 =