有两捆铁丝共长
132米.从第一捆上剪去[
]|
A .16,116 |
B .60,72 |
|
C .50,82 |
D .32,60 |
求比的未知项.
40∶x=
x=
[
]|
A .20 |
B . |
|
C .4000 |
D .150 |
求比的未知项.
x∶4=x=
[
]|
A .20 |
B . |
|
C .4000 |
D .150 |
求比值.
(
1)[ ]
(2)
=
[ ]
|
A. |
B. |
|
C. |
D. |
甲数的
[
]|
A .18 |
B .16 |
|
C .27 |
D .72 |
已知一个数的
[
]|
A .1920 |
B .7680 |
C .30 |
D .120 |
求
480的[
]|
A .1920 |
B .7680 |
C .30 |
D .120 |