题目内容
(
+
÷2)×
.
| 1 |
| 3 |
| 4 |
| 5 |
| 6 |
| 11 |
(
+
÷2)×
,
=(
+
×
)×
,
=(
+
)×
,
=
×
,
=
.
| 1 |
| 3 |
| 4 |
| 5 |
| 6 |
| 11 |
=(
| 1 |
| 3 |
| 4 |
| 5 |
| 1 |
| 2 |
| 6 |
| 11 |
=(
| 1 |
| 3 |
| 2 |
| 5 |
| 6 |
| 11 |
=
| 11 |
| 15 |
| 6 |
| 11 |
=
| 2 |
| 5 |
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