已知:2△3=2+22+222=246,3△4=3+33+333+3333=3702,计算5△3,3△2快
问题描述:
已知:2△3=2+22+222=246,3△4=3+33+333+3333=3702,计算5△3,3△2
快
答
5△3=5+55+555=615
3△2=3+33=36
答
已知:2△3=2+22+222=246,
3△4=3+33+333+3333=3702,
则5△3=5+55+555=615
3△2=3+33=36