ADDING, SUBTRACTING and MULTIPLYING INTEGERS -

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Presentation transcript:

ADDING, SUBTRACTING and MULTIPLYING INTEGERS - REVEIW Use tiles to find the sum or difference. 1. 6 + (-9) 2. -12 + 6 OK to draw out tiles….actually, quite smart thing to do. + + - -3 -6

DO NOT forget to “add the opposite!” 3. 7 - 15 4. -14 - 6 OK to draw out tiles….too… 7 + - 15 -14 + - 6 + + + - -8 -20

DO NOT forget to “add the opposite!” 5. 6 – (-13) 6. -4 – (-10) 6 + 13 OK to draw out tiles….too… -4 + 10 19 6

Find the product. 7. 5(-10) 8. -7 · -6 - -50 42 Make sure to look at the signs FIRST! Do you need to add a neg sign to the answer FIRST? 7. 5(-10) 8. -7 · -6 - -50 42

−3 2 − 5 2 (-3 · -3) - (5 · 5) 9 -25 Find the product. Show ALL work. IMPORTANT….the exponent goes to the base and only the base…… and the base is the ONE ITEM in front of it! 9. −3 2 10. − 5 2 (-3 · -3) - (5 · 5) 9 -25

Find the product. Show ALL work. Evaluate when x – 2, y = -3 and z = 4. Rewrite the expression and use ( ) for variables…..then plug into the holes!! 11. x (y) (z) 12. z²(x) ( ) ( ) ( ) ( )²( ) ( 4 )²( -2 ) ( -2) ( -3 ) ( 4 ) ( 16 ) ( -2 ) ( 6 ) ( 4 ) -32 24