题目内容
能简算简算
6÷
+4÷
4÷
-
÷4
×
+
÷
÷(
-
)
6÷
| 2 |
| 3 |
| 1 |
| 3 |
4÷
| 4 |
| 5 |
| 4 |
| 5 |
| 7 |
| 18 |
| 1 |
| 4 |
| 3 |
| 4 |
| 18 |
| 7 |
| 12 |
| 7 |
| 2 |
| 3 |
| 1 |
| 4 |
分析:(1)(2)按运算顺序解答即可;
(3)把原式化为
×
+
×
,再利用乘法分配律解答;
(4)先算括号里的,再算除法解答.
(3)把原式化为
| 7 |
| 18 |
| 1 |
| 4 |
| 3 |
| 4 |
| 7 |
| 18 |
(4)先算括号里的,再算除法解答.
解答:解:(1)6÷
+4÷
,
=9+12,
=21;
(2)4÷
-
÷4,
=5-
,
=4
;
(3)
×
+
÷
,
=
×
+
×
,
=
×(
+
),
=
×1,
=
;
(4)
÷(
-
),
=
÷
,
=4
.
| 2 |
| 3 |
| 1 |
| 3 |
=9+12,
=21;
(2)4÷
| 4 |
| 5 |
| 4 |
| 5 |
=5-
| 1 |
| 5 |
=4
| 4 |
| 5 |
(3)
| 7 |
| 18 |
| 1 |
| 4 |
| 3 |
| 4 |
| 18 |
| 7 |
=
| 7 |
| 18 |
| 1 |
| 4 |
| 3 |
| 4 |
| 7 |
| 18 |
=
| 7 |
| 18 |
| 1 |
| 4 |
| 3 |
| 4 |
=
| 7 |
| 18 |
=
| 7 |
| 18 |
(4)
| 12 |
| 7 |
| 2 |
| 3 |
| 1 |
| 4 |
=
| 12 |
| 7 |
| 5 |
| 12 |
=4
| 4 |
| 35 |
点评:本题主要考查学生对于四则混合运算顺序,以及乘法分配律知识掌握.
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