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The temperature was -3º C last night. It is now -4º C. What was the change in temperature?

User Ben Zifkin
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It decreased 1-degree celsius.
User Kidoman
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Change in temperature = -4 - (-3) = -4+3 = -1

So, temperature changed by -1 degree means, decreased by 1 degree Celsius

Hope this helps!
User Tomasz Kaminski
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