16+8=
43﹣30=
62﹣6=
23+9=
16﹣8=
34﹣17=
49﹣27=
75+5=
61﹣4=
41+839
45+3040+35
84-775
38+4081-9
82-4051-9
66+786-8
=(个)
=(朵)
=(个)
53-=13
35+=65
=(根)