9 7=7 ( )=19-( )=15 ( )=10 ( )这题怎么算

来源：学生作业帮助网 编辑：作业帮 时间：2024/11/24 16:36:00
9 7=7 ( )=19-( )=15 ( )=10 ( )这题怎么算
x)T05WPд5SzE35=|t"}uِe PD!HH~qAbD?

9 7=7 ( )=19-( )=15 ( )=10 ( )这题怎么算
9 7=7 ( )=19-( )=15 ( )=10 ( )这题怎么算

9 7=7 ( )=19-( )=15 ( )=10 ( )这题怎么算
97=7(+90)=19-(-71)=15(+82)=10(+72)