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- 1. WELCOME TO … Ms. Herzog’s Integers Lesson!
- 2. What is an integer??? Any whole number. It can be positive or negative. ANSWER Adding Integers! Examples: 2, -5, 245, 0, 9, -1,399
- 3. How do we add positive and negative integers? Think in terms of number chips Example: We can think of 4 as four positive chips +4
- 4. How do we add positive and negative integers? Think in terms of number chips Another example: We can think of -3 as three negative chips -3
- 5. How do we add positive and negative integers? Think in terms of number chips Another example: We can think of -8 as eight negative chips -8
- 6. How do we add positive and negative integers? Think in terms of number chips Another example: We can think of 6 as six positive chips +6
- 7. Let’s do an example! Use number chips! 4 + 7 ANSWER 11 +4 +7
- 8. Let’s do an example! Use number chips! -2 + 5 ANSWER 3 One negative chip and one positive chip cancel! +5 -2
- 9. Let’s do an example! Use number chips! 3 + (-5) ANSWER -2 One negative chip and one positive chip cancel! +3 -5
- 10. Let’s do an example! Use number chips! -8 + 5 ANSWER -3 One negative chip and one positive chip cancel! -8 +5
- 11. Let’s do an example! Use number chips! -3 + (-5) ANSWER -8 There are no chips to cancel! -5 -3
- 12. -3 + (-8) -11 ANSWER Number Chips! -3 -8
- 13. 4 + (-5) -1 ANSWER Number Chips! +4 -5
- 14. -3 + 9 6 ANSWER Number Chips! -3 +9
- 15. <ul><li>You Try! </li></ul><ul><li>(-1) + (3) 6. (-7) + (1) </li></ul><ul><li>(4) + (-5) 7. (2) + (-3) </li></ul><ul><li>(10) + (-7) 8. (-3) + (-5) </li></ul><ul><li>(-2) + (-3) 9. (2) + (-1) </li></ul><ul><li>(-5) + (2) 10. (-2) + 1 </li></ul>

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