简便计算243—95拖式计算
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/24 18:38:35
![简便计算243—95拖式计算](/uploads/image/z/129368-56-8.jpg?t=%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97243%E2%80%9495%E6%8B%96%E5%BC%8F%E8%AE%A1%E7%AE%97)
简便计算243—95拖式计算
简便计算243—95
拖式计算
简便计算243—95拖式计算
243-95
=243-(100-5)
=243-100+5
=143+5
=148
243-95
=243-(100-5)
=243-100+5
=143+5
=148
243-7
=(250-7)-(100-5)
=(250-100)-(7-5)
=150-2
=148
243-95
=(200-90)+(43-5)
=110+38
=148