题目内容
解化例.
|
| ||||||||
| x:6.4=4:3.25 |
|
(1)
:x=
:2,
x=
×2,
x÷
=
÷
,
x=
;
(2)
=
,
8x=21×0.4,
8x÷8=8.4÷8,
x=1.05;
(3)x:6.4=4:3.25,
3.25x=4×6.4,
3.25x÷3.25=25.6÷3.25,
x=
;
(4)
=
,
0.25x=1.6×1.25,
0.25x÷0.25=2÷0.25,
x=8.
| 3 |
| 5 |
| 1 |
| 3 |
| 1 |
| 3 |
| 3 |
| 5 |
| 1 |
| 3 |
| 1 |
| 3 |
| 6 |
| 5 |
| 1 |
| 3 |
x=
| 18 |
| 5 |
(2)
| 8 |
| 21 |
| 0.4 |
| x |
8x=21×0.4,
8x÷8=8.4÷8,
x=1.05;
(3)x:6.4=4:3.25,
3.25x=4×6.4,
3.25x÷3.25=25.6÷3.25,
x=
| 512 |
| 65 |
(4)
| 1.25 |
| 0.25 |
| x |
| 1.6 |
0.25x=1.6×1.25,
0.25x÷0.25=2÷0.25,
x=8.
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