精英家教网 > 小学数学 > 题目详情
1
3
×
3
4
+
1
3
×
1
4
=
1
3
1
3
×
3
4
+
1
4
3
4
+
1
4
分析:根据乘法分配律,(a+b)×c=a×c+b×c,据此进行简算.
解答:解:
1
3
×
3
4
+
1
3
×
1
4

=
1
3
×
3
4
+
1
4
),
=
1
3
×
1,
=
1
3

故答案为:
1
3
×
3
4
+
1
4
).
点评:此题考查的目的是理解乘法分配律的意义,灵活运用乘法分配律进行简便计算.
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