15^2=225,25^2=625,35^2=1225,45^2=2025,…,75^2=(),95^2=()
问题描述:
15^2=225,25^2=625,35^2=1225,45^2=2025,…,75^2=(),95^2=()
答
15^2=225,25^2=625,35^2=1225,45^2=2025,…,75^2=(5625),95^2=(9025)
7X8 25
9X10 25
希望能帮你忙,懂了请采纳,