Multiplying & Dividing Integers

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Presentation transcript:

Multiplying & Dividing Integers

RULES… Same Signs = POSITIVE Different Signs = NEGATIVE + Good Guy Staying in Town Good Thing - Leaving Town Bad Thing Bad Guy

Triangle Trap… + - -

4(3) -8(5) 2(-9) -3(-6) (-7)² 12 -28 100 -6 -7 -10 Examples… 4(3) -8(5) 2(-9) -3(-6) (-7)² 12 -28 100 -6 -7 -10

Evaluating Expressions… If x = -3 and y = 5, then find: x + 2y (x – y) + 2x y + x – 3 y

Real-Life Situations… A newspaper reports these changes in the price of a stock over four days: -1, -5, +3, and -9(in eighths of a dollar). Find the average daily change.

On Your Own… -4(-6) 5(-3) -7(8) (-4)² -12 20 -32 -48 3 -5 -4 8 Find the average: -4, -2, 0, 1, -3, 1, 2, -5, 3, -3