综合套题十
85 ×80 =	4.1 - 2.6 =	80 ÷ 1000 =
600 ÷ 25 =	66.21 - 8.5 =	20.4 × 10 =
765 +59 =	2.99 × 1000 =	9.4 + 4.67 =
910 - 40 =	8.7 ÷ 1000 =	93.9 + 22.2 =
2、简便计算
1.93 + 1.27 + 9.29 + 1.07 + 2.73	452 × 54 + 452 × 46	4000 ÷ 8 ÷ 125
125 × (8 × 12 )	803 × 133 - 803 × 33	637 - 181 - 119
3、四则运算与灵活运用
870 ÷ 95 × 19	702 - 243 - 202	1.24 + 5.59 - 1.6
208 - 637 ÷ 7 + 126	[164÷(2+2)+122]×2	576×951-951×18-58×951
208 ÷ (13 × 2) + 376	136 × 125	94 × 25