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420÷3=420×3.
×
×
.(判断对错)
分析:我们把420÷3与420×3分别进行计算,根据结果的比较再进行判断即可.
解答:解:420÷3=140;
420×3=1260;
所以题干中的说法是错误的.
故答案为:×.
点评:本题运用整数乘除法的计算法则进行计算即可.
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180÷60=12×25=0÷90=
4×5÷4×5=0.25×4+4=131+218+269+182=
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