Question

8.15×3.6+0点36×18.5的简便计算怎么写

Answer 1

8.15×3.6+0.36×18.5 =8.15×10×0.36+0.36×18.5 =0.36×(81.5+18.5) =0.36×100 =36

Answer 2

8.15×3.6+0.36×18.5=8.15×3.6+3.6×1.85=3.6×(8.15+1.85)=3.6×10=36

Answer 3

简便方法如下：
8.15×3.6+0.36×18.5=8.15×3.6+3.6×1.85=（8.15+1.85）×3.6=1×3.6=3.6

Answer 4

8.15×3.6+0点36×18.5的简便计算如下：
8.15×3.6+0.36×18.5
=8.15×10×0.36+0.36×18.5
=81.5×0.36+0.36×18.5
=（81.5+18.5）×0.36
=100×0.36
=36

Answer 5

8.15×3.6+0.36×18.5的简便计算，要应用到两个知识点：一个是积不变的规律，一个是乘法分配律。
首先我们可以利用积不变的规律， 将0.36×18.5中的一个因数0.36乘10，另一个因数18.5除以10，将它转化成3.6×1.85，这样积是不会变的。
然后就可以利用我们常常要用到的乘法分配律来进行简便计算了。
8.15×3.6+0.36×18.5
=8.15×3.6+3.6×1.85
=（8.15+1.85）x3.6
=10x3.6
=36