综合套题十
300 ÷ 25 =	85.1 × 100 =	438 +67 =
980 - 90 =	70 ÷ 1000 =	30 - 7.63 =
69.3 + 3.9 =	8.74 × 1000 =	7.4 - 5.7 =
125 ×8 =	64.4 + 55 =	5.4 ÷ 100 =
2、简便计算
9.55 - (3.55 + 1.09 )	101 × 558 - 558	246 × 1405 - 246 × 405
45 × 125 × 8	9.78 + 3.41 + 4.22 + 4.59 + 1.78	2000 ÷ 8 ÷ 125
3、四则运算与灵活运用
125 × 48	44 × 25	77 × 240 ÷ 12
( 410 + 385 ) ÷ 5	405 ÷ 3 ÷ 15 + 423	9080 ÷ ( 908 ÷ 84 )
5×[207÷(32-23)+138]	7.97 - 1.51 + 2.36	822 - 320 ÷ 8 + 316