简便运算;0.12+0.23+0.34+……+0.89=
问题描述:
简便运算;0.12+0.23+0.34+……+0.89=
答
解0.12+0.78+0.23+0.67+0.34+0.56+0.89+0.45=4.04
简便运算;0.12+0.23+0.34+……+0.89=
解0.12+0.78+0.23+0.67+0.34+0.56+0.89+0.45=4.04