题目内容
计算下面各题.
÷
÷
÷
×
×4÷
.
| 9 |
| 2 |
| 5 |
| 4 |
| 9 |
| 10 |
| 10 |
| 21 |
| 5 |
| 6 |
| 2 |
| 3 |
| 3 |
| 8 |
| 3 |
| 4 |
考点:分数的四则混合运算
专题:运算顺序及法则
分析:(1)、(2)、(3)按照从左向右的顺序进行计算.
解答:
解:(1)
÷
÷
=
÷
=4;
(2)
÷
×
=
×
=
;
(3)
×4÷
=
÷
=2.
| 9 |
| 2 |
| 5 |
| 4 |
| 9 |
| 10 |
=
| 18 |
| 5 |
| 9 |
| 10 |
=4;
(2)
| 10 |
| 21 |
| 5 |
| 6 |
| 2 |
| 3 |
=
| 4 |
| 7 |
| 2 |
| 3 |
=
| 6 |
| 21 |
(3)
| 3 |
| 8 |
| 3 |
| 4 |
=
| 3 |
| 2 |
| 3 |
| 4 |
=2.
点评:只含有一级运算的,按照从左向右的顺序进行计算.
练习册系列答案
相关题目
一份稿件有900个字,王老师每分钟打105个字,8分钟能打完这份稿件吗?( )
| A、能 | B、不能 | C、不能确定 |