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Subtracting Rational Numbers. Warm Up Subtracting Positive Rational Numbers To subtract rational numbers, apply the same rules used for subtracting integers.

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Presentation on theme: "Subtracting Rational Numbers. Warm Up Subtracting Positive Rational Numbers To subtract rational numbers, apply the same rules used for subtracting integers."— Presentation transcript:

1 Subtracting Rational Numbers

2 Warm Up

3 Subtracting Positive Rational Numbers To subtract rational numbers, apply the same rules used for subtracting integers.

4 The temperature on an outdoor thermometer on Monday was 5.5⁰C. The temperature on Thursday was 7.25 degrees less than the temperature on Monday. What was the temperature on Thursday?

5

6 Subtracting Negative Rational Numbers To subtract rational numbers, apply the same rules used for subtracting integers.

7

8

9

10

11 -3.5 – 5.8 = -3.5 + (-5.8) = Notice anything?

12

13 A cave explorer climbed from an elevation of -11 meters to an elevation of -5 meters. What vertical distance did the explorer climb?

14 Method 1 – Use a Number Line

15 Method 2 – Absolute Value

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