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Mathematics, 12.07.2019 20:30 sarah8479

Find 3 + (-9) 1. should you add or subtract 3 and 9? why? 2. is the sum positive or negative?

Find 3 + (-9) 1. should you add or subtract 3 and 9? why? 2. is the sum positive or negative?

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Find 3 + (-9) 1. should you add or subtract 3 and 9? why? 2. is the sum positive or negative?

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