题目内容
|
| 10×
|
(1)
×
×
,
=
×
,
=
;
(2)
×22×
,
=
×
,
=
;
(3)10×
×
,
=10×(
×
),
=10×
,
=
.
| 3 |
| 7 |
| 1 |
| 13 |
| 91 |
| 9 |
=
| 3 |
| 91 |
| 91 |
| 9 |
=
| 1 |
| 3 |
(2)
| 1 |
| 33 |
| 3 |
| 4 |
=
| 2 |
| 3 |
| 3 |
| 4 |
=
| 1 |
| 2 |
(3)10×
| 7 |
| 15 |
| 9 |
| 28 |
=10×(
| 7 |
| 15 |
| 9 |
| 28 |
=10×
| 3 |
| 20 |
=
| 3 |
| 2 |
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