用简便方法计算4.65X3.2+9.3X3.3+0.465X2_数学解答

用简便方法计算4.65X3.2+9.3X3.3+0.465X2

人气：184 ℃　时间：2020-07-04 13:46:04

解答

4.65X3.2+9.3X3.3+0.465X2
=4.65X3.2+4.65X2X3.3+4.65X0.2
=4.65X(3.2+6.6+0.2)
=4.65X10
=46.5