题目内容
从
里减去
与
的和,差是多少?
| 5 |
| 6 |
| 1 |
| 3 |
| 1 |
| 9 |
分析:根据题意,算出
与
的和是
+
=
+
=
,用
-
就可得出结果.
| 1 |
| 3 |
| 1 |
| 9 |
| 1 |
| 3 |
| 1 |
| 9 |
| 3 |
| 9 |
| 1 |
| 9 |
| 4 |
| 9 |
| 5 |
| 6 |
| 4 |
| 9 |
解答:解:
-(
+
),
=
-(
+
),
=
-
,
=
-
,
=
.
答:差是
.
| 5 |
| 6 |
| 1 |
| 3 |
| 1 |
| 9 |
=
| 5 |
| 6 |
| 3 |
| 9 |
| 1 |
| 9 |
=
| 5 |
| 6 |
| 4 |
| 9 |
=
| 15 |
| 18 |
| 8 |
| 18 |
=
| 7 |
| 18 |
答:差是
| 7 |
| 18 |
点评:根据题意,有分数的四则混合运算列式计算即可.
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