题目内容
计算下面各题. 6.48÷0.12÷5.4 |
9.36×9÷1.8 |
9.728÷3.2+6.4 | 39.05÷7.1-4.02. |
分析:(1)按从左向右的顺序进行计算;
(2)按从左向右的顺序进行计算;
(3)先算除法,再算加法;
(4)先算除法,再算减法.
(2)按从左向右的顺序进行计算;
(3)先算除法,再算加法;
(4)先算除法,再算减法.
解答:解:(1)6.48÷0.12÷5.4,
=54÷5.4,
=10;
(2)9.36×9÷1.8,
=84.24÷1.8,
=46.8;
(3)9.728÷3.2+6.4,
=3.04+6.4,
=9.44;
(4)39.05÷7.1-4.02,
=5.5-4.02,
=1.48.
=54÷5.4,
=10;
(2)9.36×9÷1.8,
=84.24÷1.8,
=46.8;
(3)9.728÷3.2+6.4,
=3.04+6.4,
=9.44;
(4)39.05÷7.1-4.02,
=5.5-4.02,
=1.48.
点评:考查了小数四则混合运算.注意运算顺序和运算法则,然后再进一步计算.
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