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It is plus 4
-2 - 2 = -4
1 whole = 4 fourths 4 wholes = 16 fourths 4 wholes minus 2 fourths = 16 fourths minus 2 fourths = (16 - 2) fourths = 14 fourths 14 fourths = 3 wholes plus 2 fourths, or 3 wholes plus 1 tooth.
4 - (abs (2 - 15)) = 4 - 13 = -9
Positive 3 plus negative 5 minus negative 2 minus positive 4 is equal to -4.