题目内容
计算下列各题.
0.416÷32×0.1
5.06×(16.8÷28)
2.4×2.5÷1.5.
0.416÷32×0.1
5.06×(16.8÷28)
2.4×2.5÷1.5.
分析:根据小数四则运算的运算顺序:先算乘除,后算加减,有括号的先算括号里的;同级运算按照从左向右的顺序进行解答.
解答:解:0.416÷32×0.1,
=0.013×0.1,
=0.0013;
5.06×(16.8÷28),
=5.06×0.6,
=3.036;
2.4×2.5÷1.5,
=6÷1.5,
=4.
=0.013×0.1,
=0.0013;
5.06×(16.8÷28),
=5.06×0.6,
=3.036;
2.4×2.5÷1.5,
=6÷1.5,
=4.
点评:此题考查了小数的四则混合运算,注意运算顺序和运算法则,灵活运用所学的运算定律进行简便计算.
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