综合套题十
860 - 80 =	76 ×90 =	78.48 - 8.8 =
62.2 + 71.9 =	200 ÷ 25 =	2.37 × 1000 =
4.3 + 5.47 =	449 +78 =	90 ÷ 1000 =
27.5 × 100 =	5.8 ÷ 100 =	6.2 - 5.9 =
2、简便计算
125 × ( 60 + 8 )	666 × 718 + 282 × 666	6000 ÷ 4 ÷ 25
545 - 145 - 255	82 × 125 × 8	3.38 + 3.91 + 8.45 + 3.62 + 3.09
3、四则运算与灵活运用
454 - 131 - 154	(82 × 3 + 848) × 9	89 × 640 ÷ 16
4.2 - 3.86 + 9.89	62100 ÷ ( 621 ÷ 34 )	125 × 60 × 25
[3×(79+72)-312]×5	143 - 560 ÷ 10 ÷ 4	125 × 56