7×356-37 5×44×5
6×3+65×6 67-2376-23
14+7= 41-6= 58+40= 73-42=
91-69= 4×5= 3×6= 75-39=
43+30+9= 84-50+7= 86-7-30=
82-(65-40)= 90-(37+23)= 46+27-38=