题目内容
脱式计算(能简算的要简算)
| 70.9-48.32÷1.6 | (
|
|
|
(1)70.9-48.32÷1.6,
=70.9-30.2,
=40.7;
(2)(
| 1 |
| 9 |
| 1 |
| 12 |
=
| 1 |
| 9 |
| 1 |
| 12 |
=4-3,
=1;
(3)
| 4 |
| 25 |
| 2 |
| 5 |
| 1 |
| 3 |
| 9 |
| 11 |
=
| 4 |
| 25 |
| 11 |
| 15 |
| 9 |
| 11 |
=
| 4 |
| 25 |
| 3 |
| 5 |
=
| 4 |
| 15 |
(4)
| 4 |
| 7 |
| 1 |
| 7 |
| 1 |
| 7 |
=
| 1 |
| 7 |
| 1 |
| 7 |
| 1 |
| 7 |
=
| 1 |
| 7 |
=
| 1 |
| 7 |
=24.
练习册系列答案
相关题目