综合套题十
40 - 6.02 =	4000 ÷ 50 =	57.4 + 39 =
3.32 × 1000 =	35.5 × 100 =	6.5 - 5.8 =
130 - 80 =	20 ×81 =	5.5 ÷ 100 =
40 ÷ 10000 =	14.5 + 92.9 =	687 +55 =
2、简便计算
597 - (397 + 125 )	11 × 107	31000 ÷ (125 × 31 )
172 + 750 + 126 + 628 + 574	21 × 8 × 125	99 × 149 + 149
3、四则运算与灵活运用
8.5 - 4.92 + 6	169 - 23 × 5 + 367	487 - 299 - 187
2×[2×(83-53) +279]	3555 - 116 - 955 - 1884	998 × 596
48 × 125	38 × 780 ÷ 13	1980 ÷ 11 ÷ 12 + 145