Compute: [-7 + 12], -19, 5, -5, 19, Which statement correctly explains why? [-5 - (-3) = -2], Subtracting a negative is the same as adding a positive., When subtracting, always subtract the numbers and keep the bigger sign., Two negatives always make a positive., You change both numbers to positive., The temperature was 6°C in the morning. At night, it dropped by 9°C. What is the temperature at night?, 15°C, 3°C, -3°C, -15°C, Maria solved: [-8 + (-4) = 4]. What is her mistake?, She added instead of subtracting., She forgot that adding two negative numbers gives a negative result., She multiplied instead of adding., She changed the signs incorrectly., Which expression correctly represents: “A submarine at -20 meters rises 8 meters and then dives 5 meters”?, -20 + 8 + 5, -20 - 8 - 5, -20 + 8 - 5, -20 - 8 + 5.

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