神机妙算细又巧．（计算下面各题能简算的要简算）（1）57×21×310（2）1835÷0.6×23（3）2-613÷926-23（4）910×[59÷(12-16)]（5）(0.25+13)×(1.6÷45)（6）（317+139）×17+22÷39．-数学
| 10 |
| 6 |
| 2 |
| 3 |
=
| 4 |
| 7 |
（3）2-
| 6 |
| 13 |
| 9 |
| 26 |
| 2 |
| 3 |
=2-
| 4 |
| 3 |
| 2 |
| 3 |
=2-（
| 4 |
| 3 |
| 2 |
| 3 |
=2-2，
=0；
（4）
| 9 |
| 10 |
| 5 |
| 9 |
| 1 |
| 2 |
| 1 |
| 6 |
=
| 9 |
| 10 |
| 5 |
| 9 |
| 2 |
| 6 |
=
| 9 |
| 10 |
| 15 |
| 9 |
=
| 3 |
| 2 |
（5）(0.25+
| 1 |
| 3 |
| 4 |
| 5 |
=
| 3 |
| 4 |
=
| 3 |
| 2 |
（6）（
