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3
10
=
3
5×10
=
3
50
×
×
.(判断对错)
分析:整数乘分数,用整数与分子相乘的积作分子,分母不变,能约分的先约分计算简便.
解答:解:5×
3
10
=
3
2

故答案为:×.
点评:此题考查的目的是理解掌握整数乘分数的计算法则.
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