用一种边长是6分米的方砖铺地，铺长3米，宽2.4米的客厅，至少要用方砖多少块？)r7F4H9v'[/k9_5O0J
算式：提示/C0i9C/F)r7F4H9v'[/k9_5O0J
答：至少要用方砖*Q(i-t4B;C:^'C9m9O.Z2a6U5r块。)r7F4H9v'[/k9_5O0J