Warm Up 1. 4 + (3 + 6) = (4 + 3) + 6 2. a(b – c) = ab – ac 3. 8 + -8 = 0 4. (ab)c = (ac)b 5. 3 + 2 = 5 6. Name each property Answers 1.Associative property.

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Warm Up (3 + 6) = (4 + 3) a(b – c) = ab – ac = 0 4. (ab)c = (ac)b = 5 6. Name each property Answers 1.Associative property of addition 2.Distributive property 3.Inverse property of addition 4.Commutative property 5.Closure 6. Inverse property of multiplication

Lesson 1.3 Operations with Integers SWBAT: Recognize, be able to solve problems involving addition, subtraction, multiplication and division of integers.

1. Adding integers When signs are alike, add the numbers and keep the sign. Ex = ________ Ex = ________ -7 32

● When signs are opposite, subtract the numbers and use the sign of the bigger number. Ex = _____ Ex = _____ 1. Adding integers continued -3 2

When subtracting integers, change the subtraction sign to an addition sign, and do the opposite to whatever follows. Ex = _______ Ex = _______ 2. Subtracting integers

3. Comparing integers The number to the right on a number line is always larger. (>,<, =) Ex ___ -2 Ex ___ -8 < >

4. Multiplying and Dividing Integers. When signs are alike, your answer is positive. Ex 9. (-4)(-2) = ______ Ex 10. 9(8) = ______ 8 72

When signs are opposite, your answer is negative. Ex (4) = ______ Ex (-3) = ______ 4. Multiplying and Dividing Integers continued. -36

Your Turn = 2. 4 – 5 = – -6 = 4. (-3)4 = 5. (-4)(-4) = 6. 7(6)=

Summary: Name the different sets of rules when adding, subtracting, multiplying, and dividing integers. How will you remember them? Worksheet Homework: