综合套题十
20 ×36 =	48.08 - 1.9 =	420 - 80 =
1.9 + 6.65 =	70 ÷ 10000 =	78 +148 =
2.7 ÷ 100 =	700 ÷ 25 =	9.19 × 1000 =
9.8 - 5.9 =	73.6 + 71.9 =	35.4 × 10 =
2、简便计算
1000 ÷ 8 ÷ 125	4 × (77 × 25 )	8.74 - (1.74 + 1.59 )
1001 × 692 - 692	25 × ( 100 + 4 )	145 + 548 + 272 + 255 + 128
3、四则运算与灵活运用
370 + 66 × 6 - 69	86 × 850 ÷ 17	112 - 96 ÷ 4 ÷ 12
212 - 644 + 646	[6×(63+73)-452]×3	432 ÷ 54
9.8 - 9.7 + 5.7	1788 ÷ 102 × 17	125 × 80 × 25