综合套题十
30 ÷ 10000 =	9.1 - 6.4 =	4.1 + 5.17 =
80 - 4.69 =	5.7 ÷ 1000 =	74 +449 =
16 ×125 =	600 ÷ 25 =	6.8 + 85.8 =
830 - 90 =	6.61 × 1000 =	23.6 × 10 =
2、简便计算
5.98 - 1.27 - 1.73	4000 ÷ 125 ÷ 8	397 × 1457 - 457 × 397
386 + 386 × 99	389 + 154 + 218 + 411 + 282	25 × (4 × 56 )
3、四则运算与灵活运用
44 × 750 ÷ 15	5×[291÷(100-97)+113]	1200 ÷ 200
(330 ÷ 5 + 868) × 5	9550 ÷ ( 955 ÷ 84 )	716 × 98
359 - 64 ÷ 8 ÷ 4	125 × 32 × 25	7.9 + 8.29 - 5.1