来自沈朗的问题
5行8列40个正方组成多少长方形?
5行8列40个正方组成多少长方形?
1回答
2020-03-22 05:46
5行8列40个正方组成多少长方形?
5行8列40个正方组成多少长方形?
1x2:7x5=351x3:6x5=301x4:5x5=251x5:4x5=201x6:3x5=151x7:2x5=101x8:1x5=05---------------------------Subtotal=1402x1:4x8=322x3:4x6=242x4:4x5=202x5:4x4=162x6:4x3=122x7...