问题
解答题
脱式计算（能简算的要简算）．
|
答案
解；（1）168.8÷（24.3×2-6.4）
=168.8÷（48.6-6.4）
=168.8÷42.2
=4
（2）（
| 1 |
| 3 |
| 1 |
| 5 |
=
| 1 |
| 3 |
| 1 |
| 5 |
=15-9
=6
（3）105×（
| 1 |
| 7 |
| 1 |
| 5 |
| 1 |
| 3 |
=105×
| 1 |
| 7 |
| 1 |
| 5 |
| 1 |
| 3 |
=15+21+35
=71
（4）0.6×18-
| 3 |
| 5 |
=0.6×（18-8）
=0.6×10
=6
（5）
| 5 |
| 16 |
| 3 |
| 8 |
=
| 5 |
| 16 |
| 1 |
| 4 |
=
| 5 |
| 64 |
（6）
| 8 |
| 9 |
| 3 |
| 4 |
| 7 |
| 16 |
| 1 |
| 4 |
=
| 8 |
| 9 |
| 3 |
| 4 |
| 7 |
| 16 |
| 1 |
| 4 |
=
| 8 |
| 9 |
| 9 |
| 16 |
=
| 1 |
| 2 |