83+9= 34+59=
72-27= 80-7=
56+38=
70-54=
82-49=
38+26+23=
68+13-35=
59+(54-23)=
3×6=
2×4=
6×5=
9+6=
9×5=
36÷4=
28÷7=
56÷8=
12-4=
81÷9=
6×=54 3×=21 ×9=45