12.34+23.45+34.56+45.67+56.78.67.89+78.91+89.12+91.23=
问题描述:
12.34+23.45+34.56+45.67+56.78.67.89+78.91+89.12+91.23=
答
12.34+23.45+34.56+45.67+56.78.67.89+78.91+89.12+91.23=