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Adding and Subtracting Integers

Adding and Subtracting Integers. Negative sign Left side of number line Positive sign Right side of number line Operation Action which produces a new value. -3 + -2 second term Negative sign, operation. Vocabulary. Signs are the same Add Keep the sign. +3 + +3 = +6.

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Adding and Subtracting Integers

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  1. Adding and Subtracting Integers

  2. Negative sign Left side of number line Positive sign Right side of number line Operation Action which produces a new value -3 + -2 second term Negative sign, operation Vocabulary

  3. Signs are the same Add Keep the sign +3 + +3 = +6 Adding Integers • -3 + -3 = -6

  4. Signs are different Subtract Take sign of larger number +3 + -4 = -1 Adding Integers • -3 + +4 = +1

  5. Subtracting Instructions SCC First term Stays the same Operation Change to opposite Second term Change the sign +3 - -4 = +3 + +4 = +7 Stay , - operation changes to +, - sign of second term changes to + Now you have an addition problem (check addition rules) Signs are the same Add Keep sign Subtracting Integers

  6. Signs are the same Signs are different Use SCC Use SCC +4 + +7 = -3 + +6 = +6 - +5 = -5 - +5 = Practice

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