___ − 8 = 5 5 + 8 = ___
___ − 5 = 8 8 + 5 = ___
___ − 8 = 8 8 + 8 = ___
11 − 7 = ___ 7 + ___ = 11
11 − ___ = 7 ___ + 7 = 11
___ − 7 = 7 7 + 7 = ___
___ − 5 = 9 5 + 9 = ___
___ − 9 = 5 9 + 5 = ___