题目内容
夺红旗.
+
=
;
-
=
;
-
=
;
-
=
;
+
=
;
+
=
;
-
=
;
+
=
| 1 |
| 3 |
| 1 |
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
| 5 |
| 7 |
| 1 |
| 7 |
| 4 |
| 7 |
| 4 |
| 7 |
| 4 |
| 5 |
| 3 |
| 5 |
| 1 |
| 5 |
| 1 |
| 5 |
| 3 |
| 4 |
| 1 |
| 4 |
| 1 |
| 2 |
| 1 |
| 2 |
| 5 |
| 8 |
| 2 |
| 8 |
| 7 |
| 8 |
| 7 |
| 8 |
| 3 |
| 6 |
| 1 |
| 6 |
| 2 |
| 3 |
| 2 |
| 3 |
| 5 |
| 9 |
| 4 |
| 9 |
| 1 |
| 9 |
| 1 |
| 9 |
| 2 |
| 5 |
| 3 |
| 5 |
1
1
.分析:根据分数加减法的计算方法:同分母分数相加减,分母不变,只把分子相加减即可.
解答:解:
+
=
;
-
=
;
-
=
;
-
=
;
+
=
;
+
=
;
-
=
;
+
=1.
故答案为:
、
、
、
、
、
、
1.
| 1 |
| 3 |
| 1 |
| 3 |
| 2 |
| 3 |
| 5 |
| 7 |
| 1 |
| 7 |
| 4 |
| 7 |
| 4 |
| 5 |
| 3 |
| 5 |
| 1 |
| 5 |
| 3 |
| 4 |
| 1 |
| 4 |
| 1 |
| 2 |
| 5 |
| 8 |
| 2 |
| 8 |
| 7 |
| 8 |
| 3 |
| 6 |
| 1 |
| 6 |
| 2 |
| 3 |
| 5 |
| 9 |
| 4 |
| 9 |
| 1 |
| 9 |
| 2 |
| 5 |
| 3 |
| 5 |
故答案为:
| 2 |
| 3 |
| 4 |
| 7 |
| 1 |
| 5 |
| 1 |
| 2 |
| 7 |
| 8 |
| 2 |
| 3 |
| 1 |
| 9 |
点评:此题主要考查的是分数加减法计算方法的应用.
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