Subtracting Integers

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Subtracting Integers

• Lesson 6.3

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SUBTRACTING INTEGERS

• ADD THE OPPOSITE

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SUBTRACTING INTEGERS

• 1. CHANGE THE SUBTRACTION SIGN TO ADDITION

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SUBTRACTING INTEGERS

• 2. TAKE THE INVERSE OF THE SECOND NUMBER

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SUBTRACTING INTEGERS

• 3. FOLLOW THE RULES FOR ADDITION

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Problem 1
-3 - 5
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Problem 1

• -3 (-5) -8

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Problem 2
5 - (-3)
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Problem 2

• 5 (3) 8

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Problem 3
-2 - (-10)
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Problem 3

• -2 (10) 8

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Problem 4
-6 - 8
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Problem 4

• -6 (-8) -14

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Problem 5
-9 - 0
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Problem 5

• -9 0 -9

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Problem 6
9 - (-17)
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Problem 6

• 9 (17) 26

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Problem 7
5 - (-1)
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Problem 7

• 5 (1) 6

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Problem 8
-19 - 4
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Problem 8

• -19 (-4) -23

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Using Integer Subtraction

• The highest point in Asia is 8850 meters above
  sea level. Its lowest point is 410 meters below
  sea level. What is the difference between these
  elevations?

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Using Integer Subtraction

• Use integers to represent the elevations
• 8850 Above 8850m
• 410 Below -410m

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Using Integer Subtraction

• Find the difference
• 8850 (-410)
• Rule for subtracting integers
• 8850 (410) Add
• 9260m