题目内容
| 4 |
| 7 |
| 12 |
| 13 |
16×
| 1 |
| 7 |
| 1 |
| 7 |
| 4 |
| 13 |
(1)
×23
,
=
×
,
=
;
(2)16×
+
×
,
=
+
,
=
+
,
=
.
| 4 |
| 7 |
| 12 |
| 13 |
=
| 4 |
| 7 |
| 311 |
| 13 |
=
| 1244 |
| 91 |
(2)16×
| 1 |
| 7 |
| 1 |
| 7 |
| 4 |
| 13 |
=
| 16 |
| 7 |
| 4 |
| 91 |
=
| 208 |
| 91 |
| 4 |
| 91 |
=
| 212 |
| 91 |
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