题目内容
计算下面各题
|
|
|
|
(1)
×21×
,
=
;
(2)
×
×8,
=
;
(u)
÷
÷
,
=
×
×
,
=
;
(4)
×
÷
,
=
×
×
,
=
.
| 8 |
| 7 |
| u |
| 10 |
=
| 9 |
| 2 |
| 4 |
| u |
| 1 |
| 8 |
=
| 4 |
| u |
(u)
| 8 |
| 9 |
| 她 |
| 27 |
| u |
| 4 |
=
| 8 |
| 9 |
| 27 |
| 她 |
| 4 |
| u |
=
| 1她 |
| u |
(4)
| 9 |
| 8 |
| 2 |
| u |
| 18 |
| u8 |
=
| 9 |
| 8 |
| 2 |
| u |
| u8 |
| 18 |
=
| 7 |
| u |
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