题目内容
(1)x:42=5:6
(2)
:
=x:
(3)6.5:x=
:4
(4)
:
=8:x.
(2)
| 1 |
| 3 |
| 4 |
| 7 |
| 9 |
| 14 |
(3)6.5:x=
| 13 |
| 4 |
(4)
| 1 |
| 9 |
| 2 |
| 3 |
(1)x:42=5:6,
6x=42×5,
x=
,
x=35;
(2)
:
=x:
,
x=
×
,
x=
×
÷
,
x=
×
×
,
x=
;
(3)6.5:x=
:4,
x=6.5×4,
x=
,
x=8;
(4)
:
=8:x,
x=
×8,
x=
×8÷
,
x=
×8×9
x=48.
6x=42×5,
x=
| 42×5 |
| 6 |
x=35;
(2)
| 1 |
| 3 |
| 4 |
| 7 |
| 9 |
| 14 |
| 4 |
| 7 |
| 1 |
| 3 |
| 9 |
| 14 |
x=
| 1 |
| 3 |
| 9 |
| 14 |
| 4 |
| 7 |
x=
| 1 |
| 3 |
| 9 |
| 14 |
| 7 |
| 4 |
x=
| 3 |
| 8 |
(3)6.5:x=
| 13 |
| 4 |
| 13 |
| 4 |
x=
| 6.5×4 |
| 3.25 |
x=8;
(4)
| 1 |
| 9 |
| 2 |
| 3 |
| 1 |
| 9 |
| 2 |
| 3 |
x=
| 2 |
| 3 |
| 1 |
| 9 |
x=
| 2 |
| 3 |
x=48.
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