Unit 2 Lesson 3 Recorded

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Lesson 3: Subtracting Real Numbers : 

Lesson 3: Subtracting Real Numbers

Slide 2: 

Rule To subtract real numbers, add its opposite. EX 3 – 5 -4 - (-9) 3 + -5 -2 -4 + 9 5

Slide 3: 

EX -3 - 2 -3 - (-6) -3 + -2 -5 -3 + 6 3

Slide 4: 

EX Evaluate –a - b for a = -3 and b = -5. -(-3) – (-5) 3 + 5 8

Slide 5: 

EX Evaluate y – x + 6.8 for x = -2 and y = 7.2. 7.2 – (-2) + 6.8 7.2 + 2 + 6.8 16