How would you deal with the problem? How about asking our teacher for help?
可以放____盘?还剩____个杯子?
块长方形玻璃,长截去5分米,宽截去3分米,剩下的部分是正方形.已知截去的面积是71平方分米,那么剩下的正方形的面积是多少平方分米?