精英家教网 > 小学数学 > 题目详情
5
6
-
7
12
=
3
12
写出一道加法算式是
5
6
+
3
12
=
3
12
错误
错误
分析:根据题意,被减数-减数=差,这里被减数是
5
6
,减数是
7
12
,差是
3
12
,根据减法各部分间的关系,写出一道加法算式应该是:减数+差=被减数,由此判断即可.
解答:解:因为
5
6
-
7
12
=
3
12
,所以写出一道加法算式应该是:
7
12
+
3
12
=
5
6

所以原题说法错误.
故答案为:错误.
点评:此题考查了减法各部分间的关系:被减数-减数=差,则减数+差=被减数,被减数-差=减数.
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