综合套题十
37 +688 =	80 - 8.67 =	400 ÷ 25 =
80 ÷ 1000 =	60.3 × 10 =	3.6 ÷ 100 =
9.2 + 8.16 =	21.4 + 16.8 =	840 - 60 =
1.96 × 1000 =	5.1 - 1.3 =	4 ×25 =
2、简便计算
634 + 316 + 266 + 373 + 284	1000 ÷ 4 ÷ 25	99 × 712 + 712
25 × (4 × 82 )	1002 × 14	7.52 - (2.52 + 3.74 )
3、四则运算与灵活运用
216 ÷ 54	2106 ÷ 18 ÷ 9 + 269	58600 ÷ ( 586 ÷ 89 )
8.8 + 8.6 - 7	(39 × 5 + 445) × 6	1.6 - 1.69 + 3.4
48 × 125	[(74+42)×9-113]×3	38 × 125