Correct: 5 − 7 = -2, 12 − (-6) = 18, (-7.2) − 6 = -13.2, 5 ¾  − 8 ½ =  -2¾ or -2.75, (-10) − 15 = -25 , Incorrect: 5 − 7 = 2, 12 − (-6) = -6, (-7.2) − 6 = 6.6, 5 ¾ − 8 ½ = 14¼ or 14.25, (-10) − 15 = -5,

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