08162018 Ticket in the Agenda Ticket in the

08/16/2018 Ticket in the Agenda Ticket in the door • Unit 1 : Operations with Rational numbers Vocabulary Quiz • Adding and Subtracting integers Review • Door • D. E. A. R. !!!

GOOD LUCK!!!!!! Vocabulary Terms • Negative Numbers • • • Additive Inverse Natural Numbers Repeating Decimal Multiplicative Inverse Absolute Value Integers Long Division Opposite Numbers Rational Numbers Terminating Decimal Zero Pair Positive Numbers

Adding and Subtracting Rational Numbers 2 -2 Objective: Students will add and subtract integers and rational numbers.

Addition of Rational Numbers • Same sign – add their absolute values. The sign for the answer will be the same as the addends. • Example: -11 + (-7) = - 18

Addition of Rational Numbers • Different signs – subtract the lesser absolute value from the greater absolute value. The sum has the value of the greater absolute value. • Example: 8 + (-9) = -1

Guided Practice

Add 1. 8 + (-5) =3 2. -1 + (-4) = -5 3. -6 + 14 =8

Subtraction of Rational Numbers • Add its additive inverse: Take the sign of the largest number. Example: 8 – 15 = 8 + (-15) = -7

Subtraction 1. -19 – 8 = -19 + (-8) = -27 2. 16 – (-23) = 16 + +23 = 39 3. – 9 – 6 = -9 + (-6) = -15

Reference • www. somerset. k 12. ky. us/. . . /Adding%20 and%20 Su btracting%20 Rational%20 Numbers. . .

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