综合套题十
6.15 × 1000 =	4 ×25 =	210 - 80 =
400 ÷ 25 =	80 - 4.63 =	6.2 - 3.6 =
40 ÷ 10000 =	1.7 + 4.85 =	2.5 ÷ 100 =
57 +175 =	20.8 + 12.4 =	93.9 × 10 =
2、简便计算
125 × ( 50 + 8 )	947 - (547 + 198 )	37 × 4 × 25
7.85 + 3.16 + 4.94 + 1.15 + 2.84	571 × 37 + 571 × 63	5000 ÷ 25 ÷ 4
3、四则运算与灵活运用
2.34 - 2.69 + 0.66	601 - 134 - 101	(348 ÷ 4 + 82) × 8
8.33 + 3.1 - 6.75	621 - 637 + 639	[(49+96)÷5+189]×2
990 ÷ 44 × 22	13600 ÷ ( 136 ÷ 27 )	219 - 385 ÷ 7 ÷ 5