题目内容
计算
(1
+1
)÷2
×(3
-2
)
(1
| 1 |
| 6 |
| 3 |
| 4 |
| 1 |
| 2 |
| 1 |
| 5 |
| 3 |
| 20 |
(1
+1
)÷2
×(3
-2
),
=(1
+1
)×
×(3
-2
),
=
×
×
,
=
×
,
=1
;
故答案为:1
.
| 1 |
| 6 |
| 3 |
| 4 |
| 1 |
| 2 |
| 1 |
| 5 |
| 3 |
| 20 |
=(1
| 2 |
| 12 |
| 9 |
| 12 |
| 2 |
| 5 |
| 4 |
| 20 |
| 3 |
| 20 |
=
| 35 |
| 12 |
| 2 |
| 5 |
| 21 |
| 20 |
=
| 7 |
| 6 |
| 21 |
| 20 |
=1
| 9 |
| 40 |
故答案为:1
| 9 |
| 40 |
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