5
6
-
7
12
=
3
12
寫出一道加法算式是
5
6
+
3
12
=
3
12
錯(cuò)誤
錯(cuò)誤
分析:根據(jù)題意,被減數(shù)-減數(shù)=差,這里被減數(shù)是
5
6
,減數(shù)是
7
12
,差是
3
12
,根據(jù)減法各部分間的關(guān)系,寫出一道加法算式應(yīng)該是:減數(shù)+差=被減數(shù),由此判斷即可.
解答:解:因?yàn)?span id="3hztfhl" class="MathJye" mathtag="math" style="whiteSpace:nowrap;wordSpacing:normal;wordWrap:normal">
5
6
-
7
12
=
3
12
,所以寫出一道加法算式應(yīng)該是:
7
12
+
3
12
=
5
6

所以原題說法錯(cuò)誤.
故答案為:錯(cuò)誤.
點(diǎn)評(píng):此題考查了減法各部分間的關(guān)系:被減數(shù)-減數(shù)=差,則減數(shù)+差=被減數(shù),被減數(shù)-差=減數(shù).
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