题目内容
(1)
的倒数的
是多少?
(2)一个数的倒数是
,它与
的和是多少?
| 5 |
| 7 |
| 14 |
| 15 |
(2)一个数的倒数是
| 16 |
| 21 |
| 3 |
| 8 |
(1)1÷
×
=
×
=
.
答:
的倒数的
是
.
(2)1÷
+
=
+
=
.
答:它与
的和是
.
| 5 |
| 7 |
| 14 |
| 15 |
=
| 7 |
| 5 |
| 14 |
| 15 |
=
| 78 |
| 75 |
答:
| 5 |
| 7 |
| 14 |
| 15 |
| 78 |
| 75 |
(2)1÷
| 16 |
| 21 |
| 3 |
| 8 |
=
| 21 |
| 16 |
| 3 |
| 8 |
=
| 27 |
| 16 |
答:它与
| 3 |
| 8 |
| 27 |
| 16 |
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