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Integer Operations Self Tutorial

Integer Operations Self Tutorial. Click on picture or title to start. Which Operation Do You Need?. Adding Subtracting Multiplying Dividing. To return to this page press the (home button). Same Signs Add and keep the sign. Different Signs

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Integer Operations Self Tutorial

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  1. Integer OperationsSelf Tutorial Click on picture or title to start.

  2. Which Operation Do You Need? • Adding • Subtracting • Multiplying • Dividing To return to this page press the (home button).

  3. Same Signs Add and keep the sign Different Signs Subtract and keep the sign of the larger absolute value Adding Integers Click on the type of problem you wish to see.

  4. Same Signs Examples • +6 + +9 = +15 • -13 + -10 = -23 + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + = - - - - - - - - - - - - - + - - - - - - - - - - = - - - - - - - - - - - - - - - - - - - - - - -

  5. Different Signs Examples • -13 + +7 = -6 • -11 + +19 = +8 • +7 + -10 = -3 • +14 + -5 = +9

  6. -13 + +7 = -6 - - - - - - - - - - - - - + + + + + + +

  7. 2. -11 + +19 = +8 • - - - - - - - - • - + + + + + + + + + + + + + + + + + + +

  8. 3. +7 + -10 = -3 + + + + + + + - - - - - - - - - -

  9. 4. +14 + -5 = +9 + + + + + + + + + + + + + + - - - - -

  10. Subtracting Integers Rule: Subtraction means add the opposite. (The first number stays the same.) Change subtraction to addition and take the inverse (opposite) of the number that follows. • -11 - -19 = +8 -11 + +19 = +8 • -13 - -7 = -6 -13 + +7 = -6 • +7 - +10 = -3+7 + -10 = -3 • +14 - +5 = +9 +14 + -5 = +9

  11. 1. -11 + +19 = +8 • - - - - - - - - • - + + + + + + + + + + + + + + + + + + +

  12. 2. -13 + +7 = -6 - - - - - - - - - - - - - + + + + + + +

  13. 3. +7 + -10 = -3 + + + + + + + - - - - - - - - - -

  14. 4. +14 + -5 = +9 + + + + + + + + + + + + + + - - - - -

  15. Multiplying Integers • Same signs – Positive • Different signs –Negative • 1. -12 x +7 = -84 2.+7 x -10 = -70 • 3. +6 x +9 = +54 4. -6 x -8 = +48 (2 negatives make a positive in multiplication)

  16. Dividing Integers • Same signs – Positive • Different signs –Negative • 1. -12/+6 = -2 2.+72 /-9 = -8 • 3. +66 /+6 = +11 4. -32/-8 = +4 (2 negatives make a positive in division)

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