555+555+555+555 = ....
555+555
666+666
333-222=.... 111+444=....
555-555=.... 0+666=....
111+999+888+222+777+333+666+444+555+555
456+456
Xx2+Xx3=135+55
Xx3+Xx5=35x8
Xx7-Xx2=555-40
Xx8-Xx3=985-555
123+456=?
789-456=?
123+456+789=
789-123-456=
555 + 938 = ?