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Add:(i) 13 and 15(ii) -13 and 15(iii) 13 and -15(iv) -13 and -15 |
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Answer» (i) 13 and 15 13 + 15 = 28 (ii) -13 and 15 (-13) + 15 = 2 (iii) 13 and -15 = (13)+ (-15) = 13 – 15 = -2 (iv) -13 and-15 = (-13) + (-15) = -13 – 15 = -28 |
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