题目内容
在下面的括号里填上适当的数.
是
0.875=
=
=
| 16 |
| 30 |
4
4
个| 2 |
| 15 |
| 7 |
| () |
| () |
| 32 |
| 35 |
| () |
8
8
、28
28
、40
40
.分析:
÷
=4,所以
是4个
,将0.875化为分数为
=
,根据分数的意义可知,
=
=
=
=
.
| 16 |
| 30 |
| 2 |
| 15 |
| 16 |
| 30 |
| 2 |
| 15 |
| 875 |
| 1000 |
| 7 |
| 8 |
| 7 |
| 8 |
| 7×4 |
| 8×4 |
| 28 |
| 32 |
| 7×5 |
| 8×5 |
| 35 |
| 40 |
解答:解:
÷
=4,所以
是4个
,
0.875=
=
=
=
=
=
.
即:0.875=
=
=
.
故填:4,8,28,40.
| 16 |
| 30 |
| 2 |
| 15 |
| 16 |
| 30 |
| 2 |
| 15 |
0.875=
| 875 |
| 1000 |
| 7 |
| 8 |
| 7×4 |
| 8×4 |
| 28 |
| 32 |
| 7×5 |
| 8×5 |
| 35 |
| 40 |
即:0.875=
| 7 |
| 8 |
| 28 |
| 32 |
| 35 |
| 40 |
故填:4,8,28,40.
点评:本题主要考查了分数的基本性质在实际问题中的应用.
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