题目内容
5
+4
×
-12
÷8.
| 4 |
| 7 |
| 5 |
| 7 |
| 1 |
| 11 |
| 4 |
| 5 |
(1)5
+4
×
-12
÷8,
=5
+4
×
-12
×
,
=
+
×
-
×
,
=
+
-
,
=6-
,
=4
.
| 4 |
| 7 |
| 5 |
| 7 |
| 1 |
| 11 |
| 4 |
| 5 |
=5
| 4 |
| 7 |
| 5 |
| 7 |
| 1 |
| 11 |
| 4 |
| 5 |
| 1 |
| 8 |
=
| 39 |
| 7 |
| 33 |
| 7 |
| 1 |
| 11 |
| 64 |
| 5 |
| 1 |
| 8 |
=
| 39 |
| 7 |
| 3 |
| 7 |
| 8 |
| 5 |
=6-
| 8 |
| 5 |
=4
| 2 |
| 5 |
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