Warm-up Answer the following: – Addition of integers 1) 3 + (-8) = 2) – 6 + 9 = 3) – 5 + (-4) = 4) 5 + (-3) 5) – 7 + 11 – Subtraction of integers 6) 7.

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Presentation transcript:

Warm-up Answer the following: – Addition of integers 1) 3 + (-8) = 2) – = 3) – 5 + (-4) = 4) 5 + (-3) 5) – – Subtraction of integers 6) 7 – (-2) = 7) 6 – (-7) = 8) – 5 – (-8) = 9) – 9 – (-3) = 10) 8 – 13 =

Multiplying Integers Rules of multiplying integers 1) ( + ) x ( + ) = + 2) ( - ) x ( - ) = + 3) ( + ) x ( - ) = - 4) ( - ) x ( + ) = - After the sign is determined multiply the two numbers Examples 1) (+4) x (+6) = 2) (-3) x (-8) = 3) (5) x (-7) = 4) (- 3) x (5) =

Try me!!! Multiplying integers 1)3 × (−5) = 2) −5 × −5 = 3) −9 × −2 = 4) −2 × 2 = 5) −7 × 3 = 6) −2 × −10 =

Dividing Integers Rules of dividing integers 1) ( + ) ÷ ( + ) = + 2) ( - ) ÷ ( - ) = + 3) ( + ) ÷ ( - ) = - 4) ( - ) ÷ ( + ) = - After the sign is determined simply divide the numbers Examples 1) 24 ÷ 8 = 2) – 9 ÷ 3 = 3) 32 ÷ ( - 4) = 4) (-15) ÷ 5

Try me Dividing integers 1) −28 ÷ 4 = 2.) −10 ÷ −2 = 3.) 0 ÷ 10 = 4.) −25 ÷ 5 = 5.) 80 ÷ −8= 6.) −5 ÷ −1 =

12 question quiz Thursday 9-16 Review for quiz 1) 7 + (-2) = 2) -3 + (-6) = 3) 6 – (-2) = 4) – 8 – 12 5) 8 x (-3) 6) -7 x (-4) 7) ( - 18) ÷ 9 8) (- 16) ÷ 4