–15 + 8 =, -23, -7, –7 – (–12) =, 5, -5, –6 × –5 =, 30, -30, 45 ÷ –9 =, -5, 5, The temperature was -4C at dawn. By 2PM it was 11°C. What was the change in temperature?, 15°C, 7.

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