Question

0.0056×0.45怎么做？

Answer 1

0.0056×0.45
=0.0056×0.5-0.0056×0.05
=0.0028-0.00028
=0.00252
我答对了吗。

Answer 2

0.0056×0.45=0.00252，这是一个典型的涉及到多位数小数点的有效计算，所以在计算的时候一定要注意，准确的计算出小数点后面的位数，进行合理的计算练习，才会达到更好的效果。

Answer 3

解：
0.0056×0.45
=0.0056×(0.4+0.05)
=0.0056×0.4+0.0056×0.05
=0.00224+0.00028
=0.00252
答题完毕。

Answer 4

0.0056×0.45
=0.0007x8×0.5x0.9
=0.0007x0.9x(8×0.5)
=0.00063x4
=0.00252

Answer 5

0.36*1.5-0.45
=0.4*0.9*1.5-0.45
=0.4*3*0.9*0.5-0.45
=1.2*0.45-0.45
=(1.2-1)*0.45
=0.2*0.45
=0.09