31.7*1/8+1.25*0.783-1.25 53.5*35.3+53.5*43.2+78.5*46.5 求简算谢谢了

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/24 21:13:37
31.7*1/8+1.25*0.783-1.2553.5*35.3+53.5*43.2+78.5*46.5求简算谢谢了31.7*1/8+1.25*0.783-1.2553.5*35.3+53.5*43

31.7*1/8+1.25*0.783-1.25 53.5*35.3+53.5*43.2+78.5*46.5 求简算谢谢了
31.7*1/8+1.25*0.783-1.25 53.5*35.3+53.5*43.2+78.5*46.5 求简算谢谢了

31.7*1/8+1.25*0.783-1.25 53.5*35.3+53.5*43.2+78.5*46.5 求简算谢谢了
53.5*35.3+53.5*43.2+78.5*46.5 =53.5*(35.3+43.2)+78.5*7.93+(2.8-1.93) 例3 计算注意的是对一些简4、7.5×23+31...