438乘以57+313乘以43+125乘以33有什么简便算法?

来源:学生作业帮助网 编辑:六六作业网 时间:2024/05/22 13:16:26
438乘以57+313乘以43+125乘以33有什么简便算法?438乘以57+313乘以43+125乘以33有什么简便算法?438乘以57+313乘以43+125乘以33有什么简便算法?438*57+

438乘以57+313乘以43+125乘以33有什么简便算法?
438乘以57+313乘以43+125乘以33有什么简便算法?

438乘以57+313乘以43+125乘以33有什么简便算法?
438*57+313*43+125*33
=438*57+313*+(100-57)+125*33
=438*57-313*57+31300+125*33
=125*57+31300+125*33
=125*(57+33)+31300
=11250+31300
=42550