题目内容
1减去
与
的和,所得的差除以
,商是多少?
与
的和除他们的差,商是多少?
| 1 |
| 4 |
| 3 |
| 8 |
| 1 |
| 4 |
| 1 |
| 5 |
| 1 |
| 6 |
分析:(1)先算
与
的和,1减去所得的和,所得的差除以
即可;
(2)先算
与
的差,
与
的和,所得的差除以所得的和即可.
| 1 |
| 4 |
| 3 |
| 8 |
| 1 |
| 4 |
(2)先算
| 1 |
| 5 |
| 1 |
| 6 |
| 1 |
| 5 |
| 1 |
| 6 |
解答:解:
(1)[1-(
+
)]÷
,
=[1-
]÷
,
=
÷
,
=
.
答:商是
.
(2)(
-
)÷(
+
),
=
÷
,
=
.
答:商是
.
(1)[1-(
| 1 |
| 4 |
| 3 |
| 8 |
| 1 |
| 4 |
=[1-
| 5 |
| 8 |
| 1 |
| 4 |
=
| 3 |
| 8 |
| 1 |
| 4 |
=
| 3 |
| 2 |
答:商是
| 3 |
| 2 |
(2)(
| 1 |
| 5 |
| 1 |
| 6 |
| 1 |
| 5 |
| 1 |
| 6 |
=
| 1 |
| 30 |
| 11 |
| 30 |
=
| 1 |
| 11 |
答:商是
| 1 |
| 11 |
点评:根据题意,先弄清运算顺序,然后再列式解答.
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