14÷(×) ×÷××3820××÷×÷×÷÷2.
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解:(1)14÷(×),
=14÷,
=;
(2)×÷,
=7÷,
=2;
(3)××38,
=×38×,
=10×,
=;
(4)20××,
=15×,
=;
(5)÷×÷,
=×÷,
=÷,
=;
(6)×÷÷2,
=÷÷2,
=÷2,
=.
解析分析:(1)先算乘法,再算除法;
(2)按照从左向右的顺序进行计算;
(3)根据乘法交换律进行计算;
(4)按照从左向右的顺序进行计算;
(5)按照从左向右的顺序进行计算;
(6)按照从左向右的顺序进行计算.
点评:此题主要考查分数的四则混合运算的运算顺序和应用运算定律进行简便计算.