$\"\"$

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The temperature changes from $\"\"$ to $\"\"$ .

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The change in temperature = $\"\"$ .

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To subtract an integer , add its opposite.

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Opposite of $\"\"$ is 15.

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$\"\"$ (Add 15 to 10)

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$\"\"$ (Add : $\"\"$ )

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$\"\"$

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The change in temperature is $\"\"$ .