综合套题十
30 ×47 =	8.4 + 8.48 =	730 - 80 =
2000 ÷ 50 =	45.7 + 28.8 =	86.1 × 10 =
8.2 ÷ 1000 =	2.18 × 1000 =	77 +736 =
82.77 - 5.9 =	8.4 - 5.8 =	50 ÷ 10000 =
2、简便计算
72 × 125 × 8	2000 ÷ 8 ÷ 125	608 × 737 + 608 × 263
354 + 355 + 343 + 146 + 357	13 × 1005	979 - (579 + 149 )
3、四则运算与灵活运用
2×[368÷(54-46)+122]	245 - ( 145 - 136 )	1477 ÷ 140 × 20
(276 ÷ 4 + 488) × 9	5.7 - 4.2 + 1.3	125 × 16 × 25
74 × 25	840 ÷ 5 ÷ 12 + 239	9768 - 384 - 1616 - 968