题目内容
1
-
×1
-
=1×1=1______.
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 6 |
| 1 |
| 6 |
根据分数四则混合运算的顺序,本题中应先算乘后算减,
1
-
×1
-
,
=
-
×
-
,
=
-
-
,
=
-(
+
),
=
-
,
=
,
所以上面的做法是错误的.
故答案为:×.
1
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 6 |
| 1 |
| 6 |
=
| 4 |
| 3 |
| 1 |
| 3 |
| 7 |
| 6 |
| 1 |
| 6 |
=
| 4 |
| 3 |
| 7 |
| 18 |
| 1 |
| 6 |
=
| 4 |
| 3 |
| 7 |
| 18 |
| 1 |
| 6 |
=
| 4 |
| 3 |
| 5 |
| 9 |
=
| 7 |
| 9 |
所以上面的做法是错误的.
故答案为:×.
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