Subtracting Integers

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Subtracting Integers

• Glenn C. Jones Middle School
• By Doug Callahan

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Notes Subtracting Integers

• Step 1 K for KEEP. Rewrite the first number
  and keep it the way it is.
• Step 2 F for FLIP. Flip the subtraction
  sign to addition.
• Step 3 C for CHANGE. Change the 2nd number
  to its opposite

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• Step 4 Add the integers following the rules for
  Adding Integers
• Ready for some examples?

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Example 1

• (-7) (4)
• K F C
• (-7) (-4)
• (-11)

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Example 2

• (-23) (-2)

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Example 3

• (17) (-26)

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Example 4

• (-43) (88)

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Example 5

• (-78) (-98)

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Example 6

• (44) (-11)

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Example 7

• (4) (-89)

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Example 8

• (56) (-22)

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Example 9

• (435) (-878)

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Example 10

• (63) (92)