475+254+361的简便运算
来源：学生作业帮助网 编辑：六六作业网 时间：2024/11/16 22:27:21
475+254+361的简便运算475+254+361的简便运算475+254+361的简便运算475+254+361=500-20-5+200+50+5-1+300+50+10+1=500+200+
475+254+361的简便运算
475+254+361的简便运算
475+254+361的简便运算
475+254+361
=500-20-5+200+50+5 -1 + 300 + 50 +10 +1
=500+200+300+50+50-20+10
=1090
475+254+361
=(450+25)+(250+4)+361
=(450+250)+(25+4+361)
=700+390
=1090