求简便方法:840÷12 540÷45求简便方法:840÷12540÷45
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/21 18:12:03
![求简便方法:840÷12 540÷45求简便方法:840÷12540÷45](/uploads/image/z/240566-14-6.jpg?t=%E6%B1%82%E7%AE%80%E4%BE%BF%E6%96%B9%E6%B3%95%EF%BC%9A840%C3%B712+540%C3%B745%E6%B1%82%E7%AE%80%E4%BE%BF%E6%96%B9%E6%B3%95%EF%BC%9A840%C3%B712540%C3%B745)
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求简便方法:840÷12 540÷45求简便方法:840÷12540÷45
求简便方法:840÷12 540÷45
求简便方法:840÷12
540÷45
求简便方法:840÷12 540÷45求简便方法:840÷12540÷45
840÷12
=840÷4÷3
=210÷3
=70
540÷45
=540÷9÷5
=60÷5
=12