题目内容
脱式计算:
| [1.9-1.9×(1.9-1.9)]+1.9 | 8×3
|
| 8 |
| 9 |
| 3 |
| 4 |
| 7 |
| 16 |
=
| 8 |
| 9 |
| 3 |
| 4 |
| 8 |
| 9 |
| 7 |
| 16 |
| 4 |
| 16 |
=
| 2 |
| 3 |
| 8 |
| 9 |
| 3 |
| 16 |
=
| 2 |
| 3 |
| 1 |
| 6 |
=
[1.9-1.9×(1.9-1.9)]+1.9 =[1.9-1.9×0]+1.9 =1.9+1.9 =3.8; 8×3
=8×
=8×
=
|
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