1. Day 1Adding Integers.notebook September 25, 2012
AIM: Adding Integers
Do Now
Weekly Quiz #2
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2. Day 1Adding Integers.notebook September 25, 2012
If the temperature is negative 8 degrees
and then rises 8 degrees, what is the final
temperature? Write a numeric expression to
represent this temperature change.
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3. Day 1Adding Integers.notebook September 25, 2012
1.) -5 + (-2) Removing Area
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Extra Pieces
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4. Day 1Adding Integers.notebook September 25, 2012
2.) -3 + (-4) Removing Area
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Extra Pieces
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5. Day 1Adding Integers.notebook September 25, 2012
3.) -3 + (-7) Removing Area
Extra Pieces
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6. Day 1Adding Integers.notebook September 25, 2012
4.) -4 + (-4) Removing Area
Extra Pieces
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7. Day 1Adding Integers.notebook September 25, 2012
INDIVIDUALLY: Write a rule that allows you to add any
integers with the same sign without Integer Chips. (Just
pencil and paper)
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8. Day 1Adding Integers.notebook September 25, 2012
5.) 2 + (-3) Removing Area
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1
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9. Day 1Adding Integers.notebook September 25, 2012
6.) -1 + 4 Removing Area
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10. Day 1Adding Integers.notebook September 25, 2012
7.) -6 + 2 Removing Area
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Extra Pieces
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11. Day 1Adding Integers.notebook September 25, 2012
8.) 7 + (-3) Removing Area
1 1 1
1 1 1 1
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Extra Pieces
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12. Day 1Adding Integers.notebook September 25, 2012
INDIVIDUALLY: Write a rule that allows you to add any
integers with different signs without using Integer Chips. (Just
pencil and paper)
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13. Day 1Adding Integers.notebook September 25, 2012
Final Rules
Adding Integers with the Same Sign: Find the sum of their
absolute values. Use the signs of the two integers.
Adding Integers with Different Signs: Find the difference of
their absolute values. Use the sign of the integers with the
greater absolute value.
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14. Day 1Adding Integers.notebook September 25, 2012
Use the rules to evaluate the following expressions.
1.) -40 + (-92) 2.) -33 + 15
3.) 90 + (-620) 4.) 0 + (-81)
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15. Day 1Adding Integers.notebook September 25, 2012
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16. Day 1Adding Integers.notebook September 25, 2012
Extra Examples
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17. Day 1Adding Integers.notebook September 25, 2012
Before You Leave
1.) Explain whether -7 + 2 is the same as 7 + (-2).
2.) Explain whether 3 + (-5) is the same as -5 + 3.
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18. Day 1Adding Integers.notebook September 25, 2012
Homework
None
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19. Day 1Adding Integers.notebook September 25, 2012
AIM: Adding Integers
Final Rules
Adding Integers with the Same Sign: Find the sum of their
absolute values. Use the signs of the two integers.
Adding Integers with Different Signs: Find the difference of
their absolute values. Use the sign of the integers with the
greater absolute value.
Use the rules to evaluate the following expressions.
1.) -40 + (-92) 2.) -33 + 15
3.) 90 + (-620) 4.) 0 + (-81)
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