题目内容
求比值:
25:6.5
1.5:
0.3:
:
.
25:6.5
1.5:
| 3 |
| 5 |
0.3:
| 9 |
| 7 |
| 1 |
| 7 |
| 5 |
| 14 |
考点:求比值和化简比
专题:比和比例
分析:根据求比值的方法,就用比的前项除以后项即得比值.
解答:
解:(1)25:6.5
=25÷6.5
=25÷
=25×
=
;
(2)1.5:
=1.5÷0.6
=2.5;
(3)0.3:
=0.3÷
=0.3×
=
;
(4)
:
=
÷
=
×
=
.
=25÷6.5
=25÷
| 13 |
| 2 |
=25×
| 2 |
| 13 |
=
| 50 |
| 13 |
(2)1.5:
| 3 |
| 5 |
=1.5÷0.6
=2.5;
(3)0.3:
| 9 |
| 7 |
=0.3÷
| 9 |
| 7 |
=0.3×
| 7 |
| 9 |
=
| 7 |
| 30 |
(4)
| 1 |
| 7 |
| 5 |
| 14 |
=
| 1 |
| 7 |
| 5 |
| 14 |
=
| 1 |
| 7 |
| 14 |
| 5 |
=
| 2 |
| 5 |
点评:此题主要考查了求比值的方法,注意求比值的结果是一个商,可以是整数、小数或分数.
练习册系列答案
相关题目
计算结果为三位数的是( )
| A、577+544 |
| B、1000-235 |
| C、455-423 |