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**Assignment 2-3/68-69/3-63 M3 2-4/74-75/3-54M3**

2-3 Addition of Rational Numbers(pgs 63-70) 2-4 Subtraction of Rational Numbers (pgs71-76) Assignment 2-3/68-69/3-63 M3 2-4/74-75/3-54M3

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**Vocab Additive Inverses (2-3)**

Two rational numbers with a sum of_______. (examples: and 4.2 , and ) Note: All represent the same quantity

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**Think of the number line for adding integers**

Add a positive integer by moving to the ___________on the number line Add a negative integer by moving to the ________ on the number line Subtract an integer by adding its opposite

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**Different-Subtract- Larger**

Rules for Addition of Integers 1)To add integers having the ___________sign, _________ the absolute value of each number. __________the same sign. (SAK) Same-Add-Keep 2) To add integers with ____________signs, _____________the smallest absolute value from the largest. Use the sign of the number with the ________________absolute value and. (DSL) Different-Subtract- Larger 3) Subtract an integer by ____________________its opposite (then follow 1 or 2) 4) Watch out! The negative of a negative is the opposite positive number. -(-a) = +a

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Examples Find the additive inverse ) 3) –(-6)

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**Add or Subtract (For HW you must show finding common denominator for all fractions)**

(SAK or DSL?) 5) – 8 (change then SAK or DSL) 6) (-5) + 4 +(-12) + 13 (Hint: Combine + and – first)

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7) 8) -50 – 3 10)

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-2 –(-5x) + 8x – 3x – (-6) 12) Joe has $86 in his account and writes a check for $95. How much is in his account? It was 12°F at 6:00 pm at midnight it was -3°F, how much did the temperature change?

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N5 Explain the meaning and effect of adding and subtracting integers N6 Simplify numerical expressions involving integers and use integers to solve.

N5 Explain the meaning and effect of adding and subtracting integers N6 Simplify numerical expressions involving integers and use integers to solve.

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