125+2.125+3.125.+80.125 （要写过程）_数学解答

125+2.125+3.125.+80.125 （要写过程）

人气：475 ℃　时间：2020-04-16 07:42:17

解答

原式=125+2.125+2.125+1+2.125+2.2.125+78
=125+2.125x(1+78)+(1+2+3+4+5+6.+78)
=125+2.125x79+(1+78)÷2x78
=125+167.875+3081
=3373.875
嘿嘿.