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2
7
+
2
7
+
2
7
+
2
7
+
2
7
写成乘法算式是(  )
分析:分数乘整数的意义同整数乘法的意义相同,都是求几个相同加数和的简便运算.据此解答.
解答:解:
2
7
+
2
7
+
2
7
+
2
7
+
2
7
=
2
7
×5=
10
7

故选:B.
点评:本题主要考查了学生对分数乘整数意义的掌握情况.
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