题目内容
能简算的用简便方法计算.
+
×
35÷(35+
)
| 1 |
| 6 |
| 5 |
| 6 |
| 5 |
| 6 |
35÷(35+
| 5 |
| 6 |
分析:(1)先算乘法,再算加法;
(2)先算加法,再算除法.
(2)先算加法,再算除法.
解答:解:
(1)
+
×
,
=
+
,
=
;
(2)35÷(35+
),
=35÷35
,
=35×
,
=
.
(1)
| 1 |
| 6 |
| 5 |
| 6 |
| 5 |
| 6 |
=
| 1 |
| 6 |
| 25 |
| 36 |
=
| 31 |
| 36 |
(2)35÷(35+
| 5 |
| 6 |
=35÷35
| 5 |
| 6 |
=35×
| 6 |
| 215 |
=
| 42 |
| 43 |
点评:此题主要考查分数的四则混合运算的运算顺序和应用运算定律进行简便计算.
练习册系列答案
相关题目