题目内容
列式计算.
(1)
比
的
多多少?
(2)1减去
的差乘以
,再乘
的倒数,积是多少?
(1)
| 5 |
| 9 |
| 5 |
| 36 |
| 4 |
| 5 |
(2)1减去
| 4 |
| 9 |
| 3 |
| 8 |
| 10 |
| 3 |
分析:(1)先算
的
,再用
减去所得的积即可;
(2)先算1减去
的差,
的倒数是1÷
,所得的差乘以
,所得的积再乘(1÷
)的商即可.
| 5 |
| 36 |
| 4 |
| 5 |
| 5 |
| 9 |
(2)先算1减去
| 4 |
| 9 |
| 10 |
| 3 |
| 10 |
| 3 |
| 3 |
| 8 |
| 10 |
| 3 |
解答:解:
(1)
-
×
,
=
-
,
=
.
答:多
.
(2)(1-
)×
×(1÷
),
=
×
×
,
=
×
,
=
.
答:积是
.
(1)
| 5 |
| 9 |
| 5 |
| 36 |
| 4 |
| 5 |
=
| 5 |
| 9 |
| 1 |
| 9 |
=
| 4 |
| 9 |
答:多
| 4 |
| 9 |
(2)(1-
| 4 |
| 9 |
| 3 |
| 8 |
| 10 |
| 3 |
=
| 5 |
| 9 |
| 3 |
| 8 |
| 3 |
| 10 |
=
| 5 |
| 24 |
| 3 |
| 10 |
=
| 1 |
| 16 |
答:积是
| 1 |
| 16 |
点评:根据题意,先弄清运算顺序,然后再列式解答.
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