求999+333×42+111×15=?的简便计算
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/30 03:33:14
![求999+333×42+111×15=?的简便计算](/uploads/image/z/142675-43-5.jpg?t=%E6%B1%82999%2B333%C3%9742%2B111%C3%9715%EF%BC%9D%3F%E7%9A%84%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97)
求999+333×42+111×15=?的简便计算
求999+333×42+111×15=?的简便计算
求999+333×42+111×15=?的简便计算
原式=3*333+333*42+111*3*5=333*(3+42+5)=16650
999+333*42+111*15=333*(3+42+5)=333*50=16550
999+333×42+111×15
=111*(9+126+15)
=111*150
=111*(100+50)
=11100+5550
=16650