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It is 2 o C

4 3 2 1 0 -1 -2 -3. It is 2 o C. The temperature drops by 3 degrees. What temperature is it now?. -1 o C. 4 3 2 1 0 -1 -2 -3. It is 4 o C. The temperature drops by 5 degrees. What temperature is it now?. -1 o C. 4 3 2 1 0 -1 -2 -3. 4 3 2 1 0 -1 -2 -3. 4 3

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It is 2 o C

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  1. 4 3 2 1 0 -1 -2 -3 It is 2oC • The temperature drops by 3 degrees • What temperature is it now? -1oC

  2. 4 3 2 1 0 -1 -2 -3 It is 4oC • The temperature drops by 5 degrees • What temperature is it now? -1oC

  3. 4 3 2 1 0 -1 -2 -3 4 3 2 1 0 -1 -2 -3 4 3 2 1 0 -1 -2 -3 It is -2oC 4 3 2 1 0 -1 -2 -3 • The temperature rises by 3 degrees • What temperature is it now? +1oC

  4. 4 3 2 1 0 -1 -2 -3 4 3 2 1 0 -1 -2 -3 4 3 2 1 0 -1 -2 -3 4 3 2 1 0 -1 -2 -3 4 3 2 1 0 -1 -2 -3 3 - 4 = -1 This is a negative number

  5. 20 15 10 5 0 -5 -10 -15 20 15 10 5 0 -5 -10 -15 20 15 10 5 0 -5 -10 -15 20 15 10 5 0 -5 -10 -15 It is 10oC • The temperature drops by 15oC • What is the temperature now? -5oC

  6. 20 15 10 5 0 -5 -10 -15 20 15 10 5 0 -5 -10 -15 20 15 10 5 0 -5 -10 -15 20 15 10 5 0 -5 -10 -15 20 15 10 5 0 -5 -10 -15 It is 15oC • The temperature drops by 20oC • What is the temperature now? -5oC

  7. 20 15 10 5 0 -5 -10 -15 20 15 10 5 0 -5 -10 -15 20 15 10 5 0 -5 -10 -15 20 15 10 5 0 -5 -10 -15 20 15 10 5 0 -5 -10 -15 15 - 20 = -5

  8. 20 15 10 5 0 -5 -10 -15 20 15 10 5 0 -5 -10 -15 20 15 10 5 0 -5 -10 -15 -15+10 = -5

  9. 20 15 10 5 0 -5 -10 -15 20 15 10 5 0 -5 -10 -15 20 15 10 5 0 -5 -10 -15 20 15 10 5 0 -5 -10 -15 20 15 10 5 0 -5 -10 -15 -15+20 = +5

  10. WELL DONE!!

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