用简便方法计算 原题,44.5+28+44.5×420+4.45×30
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/02 05:08:54
![用简便方法计算 原题,44.5+28+44.5×420+4.45×30](/uploads/image/z/990033-33-3.jpg?t=%E7%94%A8%E7%AE%80%E4%BE%BF%E6%96%B9%E6%B3%95%E8%AE%A1%E7%AE%97+%E5%8E%9F%E9%A2%98%2C44.5%2B28%2B44.5%C3%97420%2B4.45%C3%9730)
用简便方法计算 原题,44.5+28+44.5×420+4.45×30
用简便方法计算 原题,44.5+28+44.5×420+4.45×30
用简便方法计算 原题,44.5+28+44.5×420+4.45×30
=44.5x(30+420+30)-44.5x2
=44.5x480-89
=2047
收录互联网各类作业题目,免费共享学生作业习题
飞天作业帮手机作业共收录了 千万级 学生作业题目
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/02 05:08:54
用简便方法计算 原题,44.5+28+44.5×420+4.45×30
用简便方法计算 原题,44.5+28+44.5×420+4.45×30
用简便方法计算 原题,44.5+28+44.5×420+4.45×30
=44.5x(30+420+30)-44.5x2
=44.5x480-89
=2047