综合套题十
90 - 8.27 =	4.3 - 3.4 =	15.2 × 100 =
200 ÷ 25 =	80 ÷ 10000 =	45.6 + 94 =
98 ×50 =	7.44 × 1000 =	99 +669 =
330 - 90 =	15.8 + 29.6 =	1.7 ÷ 100 =
2、简便计算
25 × ( 700 + 4 )	62 × 8 × 125	5000 ÷ 4 ÷ 25
2.54 + 5.94 + 2.21 + 1.06 + 6.79	99 × 689 + 689	873 - 154 - 146
3、四则运算与灵活运用
975 - 168 ÷ 2 + 320	676 - 934 + 939	9000 ÷ 600
8.7 + 7.48 - 6.4	44 × 25	6907 - (528 + 207 )
5×[(76-54)×3+431]	5130 ÷ 15 ÷ 18 + 335	864 ÷ 72