综合套题十
80 - 8.77 =	377 +78 =	60 ÷ 1000 =
7000 ÷ 50 =	16 ×125 =	120 - 70 =
71.7 × 100 =	25.8 + 11.5 =	3.5 - 2.7 =
2.4 ÷ 1000 =	2.5 + 9.57 =	8.02 × 1000 =
2、简便计算
845 - (104 + 245 )	916 + 916 × 999	263 + 928 + 395 + 337 + 305
125 × ( 70 + 8 )	28 × 8 × 125	11000 ÷ (11 × 25 )
3、四则运算与灵活运用
312 ÷ 24 × 12	732 - 606 + 615	108 ÷ 54
209 - 3366 ÷ 18 ÷ 17	4540 ÷ ( 454 ÷ 87 )	5.62 - 3.38 + 3.38
3×[(187-73)÷6+410]	(56 × 7 - 214) × 3	6.72 - 3.96 + 7.58