题目内容
(
+
-
)÷
.
| 3 |
| 4 |
| 1 |
| 6 |
| 5 |
| 12 |
| 1 |
| 36 |
(
+
-
)÷
,
=(
+
-
)×36,
=
×36+
×36-
×36,
=27+6-15,
=18.
| 3 |
| 4 |
| 1 |
| 6 |
| 5 |
| 12 |
| 1 |
| 36 |
=(
| 3 |
| 4 |
| 1 |
| 6 |
| 5 |
| 12 |
=
| 3 |
| 4 |
| 1 |
| 6 |
| 5 |
| 12 |
=27+6-15,
=18.
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