试题:
计算:3.6×(2.45-1.9)÷0.4=______.

答案:

我来补答
3.6×(2.45-1.9)÷0.4,
=3.6×0.55÷0.4,
=1.98÷0.4,
=4.95;
故答案为:4.95.
 
 
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这些题目你会做吗?