题目内容
(1)
|
(2)4×
|
(3)15÷
|
分析:都是只含有一级运算,按照从左向右是顺序进行计算.
解答:解:(1)
÷
÷
=
÷
=12;
(2)4×
÷
=
÷
=3;
(3)15÷
×
=
×
=10.
| 9 |
| 10 |
| 3 |
| 8 |
| 1 |
| 5 |
=
| 12 |
| 5 |
| 1 |
| 5 |
=12;
(2)4×
| 5 |
| 12 |
| 5 |
| 9 |
=
| 5 |
| 3 |
| 5 |
| 9 |
=3;
(3)15÷
| 9 |
| 10 |
| 3 |
| 5 |
=
| 50 |
| 3 |
| 3 |
| 5 |
=10.
点评:只含有一级运算的,按照从左向右是顺序进行计算.
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