Question

九百九十九又九分之八加九十九又九分之八再加九又九分之八再加三分之一怎么简便计算啊?

Answer 1

999又8/9+99又8/9+9又8/9+1/3

=999又8/9+99又8/9+9又8/9+1/3

=999+99+9+8/9+8/9+8/9+1/3

=999+99+9+8/3+1/3

=999+99+9+3

=1000+100+10-3+3

=1110