综合套题十
659 +72 =	60 ÷ 1000 =	3.88 × 1000 =
30 - 8.29 =	9.2 - 5.5 =	8 ×25 =
600 ÷ 25 =	93.8 × 100 =	1.5 ÷ 100 =
17.9 + 2.8 =	910 - 30 =	1.5 + 4.23 =
2、简便计算
1.63 + 1.69 + 6.56 + 5.31 + 2.44	838 - (166 + 338 )	125 × (8 × 46 )
( 25 + 900 ) × 4	72000 ÷ (72 × 25 )	369 + 369 × 99
3、四则运算与灵活运用
56 × 840 ÷ 14	[(56+26)×6-144]×4	936 ÷ (6 × 12) + 269
888 - 455 ÷ 7 + 153	4816 - (131 + 316 )	4.3 - 3.6 + 8.63
( 170 + 315 ) ÷ 5	489×153-153×13-76×153	1062 ÷ 46 × 23