综合套题十
70 ÷ 1000 =	89.02 - 7.1 =	80 ×86 =
1000 ÷ 50 =	80.5 + 19.9 =	840 - 60 =
2.8 ÷ 1000 =	88.4 × 10 =	6.4 + 5.95 =
5.15 × 1000 =	86 +235 =	6.1 - 5.2 =
2、简便计算
9.32 - 2.67 - 1.33	468 × 448 + 552 × 468	197 + 161 + 288 + 303 + 112
1000 ÷ 4 ÷ 25	25 × (4 × 38 )	4 × ( 25 + 400 )
3、四则运算与灵活运用
8.1 - 5.33 + 5.59	163×876-876×29-34×876	8041 - 159 - 741 - 741
3.52 - 4.43 + 3.48	474 - 50 × 6 + 333	916 - ( 416 - 533 )
1080 ÷ (6 × 12) + 458	3×[243÷(84-81)+266]	998 × 254