Showing temperature changes
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This task is about showing and writing equations with negative numbers on number lines.
On Day 1 of a week the temperature changed from 5°C below (⁻5°C) to 5°C above zero (+5°C), as shown on the number line below.
This change may also be written as an equation: ⁻5°C + 10°C = 5°C.
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a)
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For Day 2 the temperature change was from 6°C below zero to 2°C below.
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i)
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Draw the temperature change on the number line below, using an arrow to show the direction of the change.
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ii) |
Write an equation to show the change in temperature for Day 2. ____________________
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b)
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For Day 3 the temperature change was from 3°C below zero to 4°C above.
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i)
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Draw the temperature change on the number line below.
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ii) |
Write an equation to show the change in temperature for Day 3. ____________________
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a)
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For Day 4 the temperature change was from 4°C below zero to 8°C below.
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i)
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Draw the temperature change on the number line below.
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ii) |
Write an equation to show the change in temperature for Day 4. ____________________
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