题目内容
| 1 |
| 15 |
| 4 |
| 5 |
| 2 |
| 3 |
分析:先求出
乘
的积,然后用
加上这个积即可.
| 4 |
| 5 |
| 2 |
| 3 |
| 1 |
| 15 |
解答:解:
+
×
,
=
+
,
=
;
答:和是
.
| 1 |
| 15 |
| 4 |
| 5 |
| 2 |
| 3 |
=
| 1 |
| 15 |
| 8 |
| 15 |
=
| 3 |
| 5 |
答:和是
| 3 |
| 5 |
点评:本题先理解数量关系,找出运算顺序,列式求解.
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题目内容
| 1 |
| 15 |
| 4 |
| 5 |
| 2 |
| 3 |
| 4 |
| 5 |
| 2 |
| 3 |
| 1 |
| 15 |
| 1 |
| 15 |
| 4 |
| 5 |
| 2 |
| 3 |
| 1 |
| 15 |
| 8 |
| 15 |
| 3 |
| 5 |
| 3 |
| 5 |