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4. Example 6-6b Objective Multiply integers

5. Example 6-6b Vocabulary none

6. Example 6-6b Multiply/Divide Rules for Integers 1. Same sign Positive answer 2. Opposite signs Negative answer

7. Lesson 6 Contents Example 1Multiply Integers with Different Signs Example 2Multiply Integers with Different Signs Example 3Multiply Integers with the Same Sign Example 4Multiply Integers with the Same Sign Example 5Simplify and Evaluate Expressions Example 6Simplify and Evaluate Expressions

8. Example 6-1a Answer: –20 Find different 5(4) 20 - 1/6 Write problem Draw arrows to the signs Determine if the signs are the same or different Multiply the numbers without the signs 5  4 Different signs, negative answer

9. Example 6-1b Answer: –15 Find 1/6

10. Example 6-2a Answer: –27 Find -3(9) different 3(9) 27 - 2/6 Write problem Draw arrows to the signs Determine if the signs are the same or different Multiply the numbers without the signs 3  9 Different signs, negative answer

11. Example 6-2b Answer: –35 Find 2/6

12. Example 6-3a Answer: 48 Find -6(-8) same 6(8) 48 3/6 Write problem Draw arrows to the signs Determine if the signs are the same or different Multiply the numbers without the signs 6  8 Same sign, positive answer

13. Example 6-3b Answer: 28 Find 3/6

14. Example 6-4a Answer: 49 Find Write problem (-7) 2 Remember: the exponent of 2 means to multiply the base times itself (-7)(-7) (7)(7) same 49 4/6 Draw arrows to the signs Determine if the signs are the same or different Multiply the numbers without the signs 7  7 Same sign, positive answer

15. Example 6-4b Answer: 25 Find 4/6

16. Example 6-5a ALGEBRA Simplify Write problem -5(-7x) Remember: According to the Associative Property of Multiplication we can rearrange the factors so combine “like terms” -5(-7)x Multiply “like terms” -5(-7) 5/6 Draw arrows to the signs Determine if the signs are the same or different same

17. Example 6-5a ALGEBRA Simplify Answer: 35x -5(-7x) -5(-7)x -5(-7) 5(7) 35 x 5/6 same Multiply the numbers without the signs 5  7 Same sign, positive answer Bring down the variable

18. Example 6-5b ALGEBRA Simplify Answer: –48x 5/6

19. Example 6-6a ALGEBRA Evaluate (-3) 6/6 abc Write problem Remember: when variables are together it means multiply Replace a with - 3 putting the number in parenthesis to multiply Replace b with 5 (5) Replace c with -8 (-8) Multiply the first 2 numbers

20. Example 6-6a ALGEBRA Evaluate (-3) different 3(5) 15 (-8)- 6/6 abc (5)(-8) Draw arrows to the signs of the first 2 numbers Determine if the signs are the same or different Multiply the numbers without the signs 3  5 Different signs, negative answer Bring down the (-8)

21. Example 6-6a ALGEBRA Evaluate (-3) different 3(5) 15 (-8)- 6/6 abc (5)(-8) Draw arrows to the signs Determine if the signs are the same or different Multiply the numbers without the signs 15  8 Same signs, positive answersame 15(8) 120 Answer: 120

22. Example 6-6b ALGEBRA Evaluate Answer: 48 * 6/6

23. End of Lesson 6 Assignment Lesson 3:6Multiplying Integers14 - 37 All