50-49+48-47+,+2-1怎么简便计算

来源:学生作业帮助网 编辑:作业帮 时间:2024/03/29 16:32:52
50-49+48-47+,+2-1怎么简便计算

50-49+48-47+,+2-1怎么简便计算
50-49+48-47+,+2-1怎么简便计算

50-49+48-47+,+2-1怎么简便计算
50-49+48-47+,+2-1
=1+1+.+1
=25*1
=25

50-49=1
48-47=1
。。。
2-1=1
最后总共有25个1
所以结果为25

50-49+48-47+,,,+2-1
=(50-49)+(48-47)+,,,,,,+(2-1)
=1+1+,,,+1
=25

=1x50÷2
=25

50-49+48-47+,,,+2-1
=(50-49)+(48-47)+...+(2-1)
=1+1+...+1
=25*1
=25