题目内容
| 2 |
| 3 |
| 1 |
| 4 |
| 3 |
| 4 |
| 3 |
| 4 |
列式:
(
+
÷
)×
| 2 |
| 3 |
| 1 |
| 4 |
| 3 |
| 4 |
| 3 |
| 4 |
(
+
÷
)×
.| 2 |
| 3 |
| 1 |
| 4 |
| 3 |
| 4 |
| 3 |
| 4 |
分析:要求积是多少,要知道两个因数是多少,一个因数是(
+
÷
)的和,另一个因数是
,列式为(
+
÷
)×
.
| 2 |
| 3 |
| 1 |
| 4 |
| 3 |
| 4 |
| 3 |
| 4 |
| 2 |
| 3 |
| 1 |
| 4 |
| 3 |
| 4 |
| 3 |
| 4 |
解答:解:(
+
÷
)×
,
=(
+
)×
,
=1×
,
=
;
答:积是
.
| 2 |
| 3 |
| 1 |
| 4 |
| 3 |
| 4 |
| 3 |
| 4 |
=(
| 2 |
| 3 |
| 1 |
| 3 |
| 3 |
| 4 |
=1×
| 3 |
| 4 |
=
| 3 |
| 4 |
答:积是
| 3 |
| 4 |
点评:本题是道文字简答题,一定要搞清题目中的数量关系,再进行解答.
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