题目内容
列式计算.
(1)
与它倒数的和的
是多少?
(2)
的60倍与
的
相加,和是多少?
(3)
与
的积的倒数是多少?
(1)
| 1 |
| 2 |
| 1 |
| 2 |
(2)
| 2 |
| 3 |
| 14 |
| 9 |
| 9 |
| 7 |
(3)
| 3 |
| 4 |
| 16 |
| 3 |
(1)(
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 2 |
=(
| 1 |
| 2 |
| 1 |
| 2 |
=2
| 1 |
| 2 |
| 1 |
| 2 |
=
| 5 |
| 4 |
答:是
| 5 |
| 4 |
(2)
| 2 |
| 3 |
| 14 |
| 9 |
| 9 |
| 7 |
=40+2,
=42.
答:和是42.
(3)1÷(
| 3 |
| 4 |
| 16 |
| 3 |
=1÷4,
=
| 1 |
| 4 |
答:是
| 1 |
| 4 |
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