题目内容
根据比例的基本性质.在横线里填上合适的数.
(1)______:4.5=0.4:9
(2)
=
(3)
:______=
:
(4)
=
(5)
:______=4:8
(6)______:0.5=
:
.
(1)______:4.5=0.4:9
(2)
| 0.3 |
| 4 |
| () |
| 32 |
(3)
| 7 |
| 9 |
| 1 |
| 2 |
| 3 |
| 5 |
(4)
| () |
| 12 |
| 3 |
| 18 |
(5)
| 1 |
| 12 |
(6)______:0.5=
| 1 |
| 4 |
| 1 |
| 16 |
(1)4.5×0.4÷9=0.2;
(2)0.3×32÷4=2.4;
(3)
×
÷
=
÷
=
;
(4)12×3÷18=2;
(5)
×8÷4
=
÷4
=
;
(6)0.5×
÷
=
÷
=2.
故答案为:0.2;2.4;
;2;
;2.
(2)0.3×32÷4=2.4;
(3)
| 7 |
| 9 |
| 3 |
| 5 |
| 1 |
| 2 |
=
| 7 |
| 15 |
| 1 |
| 2 |
=
| 14 |
| 15 |
(4)12×3÷18=2;
(5)
| 1 |
| 12 |
=
| 2 |
| 3 |
=
| 1 |
| 6 |
(6)0.5×
| 1 |
| 4 |
| 1 |
| 16 |
=
| 1 |
| 8 |
| 1 |
| 16 |
=2.
故答案为:0.2;2.4;
| 14 |
| 15 |
| 1 |
| 6 |
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