3.2 Adding Integers (Day 2) (1 R) (2009)

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3.2 Adding Integers (Day 2) (1 R) (2009)

  1. 1. DO NOW
  2. 3. The absolute value is the distance an integer is from zero. |-3|= |3|= |5|= |-5|= 0 1 2 3 4 5 6 -1 -2 -3 -4 -5 -6
  3. 4. <ul><li>SAME SIGN </li></ul><ul><li>Ignore the signs </li></ul><ul><li>Add numbers </li></ul><ul><li>Put sign back </li></ul>-3 + -5 = -1 + -3 = -6 + -2 = -9+ -14 = -12 + -8 =
  4. 5. <ul><li>DIFFERENT SIGNS </li></ul><ul><li>Ignore the signs </li></ul><ul><li>Subtract </li></ul><ul><li>Put sign back of number that “looks” the biggest </li></ul>-3 + 5 = -1 + 6 = -5 + 9= 5 + -7 = 8 + -6 = 14 + -18 =
  5. 6. Worksheet

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