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INTEGER WAR

INTEGER WAR. Spartans. Trojans. +. -. INTEGER WAR. Trojans. +. Spartans. -. Addition of Integers. 0. +. -. Zero Pair. -. +. -4. -7 + 3. +. -. 1. -7 + 8. -. -. -12. -7 + -5. +. -. -2. -5 + 3. 7 + 8. 15. 7 + 8. It’s time to play WAR. Pair up

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INTEGER WAR

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  1. INTEGER WAR Spartans Trojans + -

  2. INTEGER WAR Trojans + Spartans - Addition of Integers

  3. 0 + - Zero Pair

  4. - + -4 -7 + 3

  5. + - 1 -7 + 8

  6. - - -12 -7 + -5

  7. + - -2 -5 + 3

  8. 7 + 8

  9. 15 7 + 8

  10. It’s time to play WAR. • Pair up • Decide who will be a Trojan or a Spartan. • Roll the die once for each warrior. • Battle by adding the two integers. • Sign of the sum gets 1 point ex. -2 + 5 is +3; Trojans get 1pt. • After 10 rolls, the warrior with the most pts wins and battles another warrior.

  11. INTEGER WAR Trojans Spartans + - Subtraction

  12. There is rule for the war of subtraction. Those who battle must rename the subtraction problem as an addition problem. This is done by adding the opposite value. After this procedure is done you may battle. There is rule for the war of subtraction. Those who battle must rename the subtraction problem as an addition problem. This is done by adding the opposite value. After this procedure is done you may battle. -5 – 8 = -5 + -8 -8 + = -13

  13. There is rule for the war of subtractions. Those who battle must rename the subtraction problem as an addition problem. This is done by adding the opposite value. After this procedure is done you may battle. 5 – -6 +6 = 5 + 6 + = 11

  14. There is rule for the war of subtractions. Those who battle must rename the subtraction problem as an addition problem. This is done by adding theopposite value. After this procedure is done you may battle. 15 – 25 -25 = 15 + (-25) + = -10

  15. + - -5 -8 – (-3) +3 +

  16. + - 6 9 – 3 - 3 +

  17. The End Addition Rules Same signs: Add and keep same sign Different signs: Subtract and keep the sigh of the largest absolute Value Subtraction Rules Add the opposite Use Addition Rules

  18. Multiply/Divide Integers Same Signs = Positive Different Signs = Negative + x + = + - x + = - + x - = - + + - x - = + - + - - - +

  19. ADD Same Signs: Add & keep the same signs -8 + -3 = -11 +7 ++5 = +12 ADD Different Signs: Subtract & use sign of largest Absolute Value –8 + 3 = -5 13 + -4 = +9 Subtract Add the opposite -8-13 = -8 + -13 = -21 2-(-16) = 2 + 16 =18 Multiply or Divide Same Signs : Positive -8 x –3 = 24 20/5 = 4 Different signs: Negative -8 x 3 = -24 -24/3 = -8

  20. Book Assignment • Page 12; 6 thru 13 • Page 18; 11thru 25 • Page 22; 13 thru 21

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