题干
简便计算
4.75﹣9.63+8.25﹣1.37
81.5×15.8+81.5×51.8+67.6×18.5
99999×26+33333×22．
答案(点此获取答案解析）
解：①4.75﹣9.63+8.25﹣1.37
=4.75+8.25﹣9.63﹣1.37
=（4.75+8.25）﹣（9.63+1.37）
=13﹣11
=2
②81.5×15.8+81.5×51.8+67.6×18.5
=81.5×（15.8+51.8）+67.6×18.5
=81.5×67.6+67.6×18.5
=67.6×（81.5+18.5）
=67.6×100
=6760
