1) -7 + 12 a) Positive b) Negative 2) 15 - 28 a) Positive b) Negative 3) -9 - 4 a) Positive b) Negative 4) 6 × -3 a) Positive b) Negative 5) -8 × -2 a) Positive b) Negative 6) -20 ÷ 5 a) Positive b) Negative

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