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Using a Number Line to Add Integers

Using a Number Line to Add Integers. 3.2. Vocabulary. Addend : the terms of an addition problem Examples: 3+5 2+9 -4 +5 0 +-12. Steps:. 1.) Start at 0 2.) Use the 1st addend to tell you how many steps to move and which direction*

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Using a Number Line to Add Integers

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  1. Using a Number Line to Add Integers 3.2

  2. Vocabulary Addend: the terms of an addition problem Examples: 3+5 2+9 -4 +5 0 +-12

  3. Steps: 1.) Start at 0 2.) Use the 1st addend to tell you how many steps to move and which direction* 3.) From the number you are at in step two use the 2nd addend to tell you how many steps to move and which direction * 4.)The number that you arrive at is your sum! *Always move to the RIGHT in black if POSITIVE *Always move to the LEFT in red if NEGATIVE

  4. 1.) -4+3

  5. 2.) 2+(-2)

  6. 3.) 7 +(-5)

  7. 4.)-7 +(-5)

  8. 5.) 3 +(-2)+5

  9. 6.) 9+ (-3) +(-5)

  10. 10.) You enter an elevator on the 5th floor. The elevator goes down three floors, then rises seven floors. What floor are you on?

  11. 11.) A track team’s average for the long jump is 15 feet. One athlete jumps 2 feet less than the average. How far did this athlete jump?

  12. Homework TB: Page 112 (10-21) all

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