题目内容
列式计算.(1)一个数减去3的差等于
的50%,求这个数.
(2)
与它的倒数之和除9与
的差,商是多少?
| 2 |
| 3 |
(2)
| 2 |
| 5 |
| 3 |
| 10 |
(1)
×50%+3,
=
+3,
=3
;
(2)(9-
)÷(
+
),
=8
÷
,
=3.
| 2 |
| 3 |
=
| 1 |
| 3 |
=3
| 1 |
| 3 |
(2)(9-
| 3 |
| 10 |
| 2 |
| 5 |
| 5 |
| 2 |
=8
| 7 |
| 10 |
| 29 |
| 10 |
=3.
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