AIM: Multiplying and Dividing
Integers
                        Do Now


      Evaluate the following expression.


       ...
Multiplication   Repeated Addition      Sum

  3 (-5)          -5 + ( -5 ) + ( -5)   - 15




                            ...
Multiplication   Repeated Addition      Sum

  3 (-5)          -5 + ( -5 ) + ( -5)   - 15

  5 (-4)

  2    (-8)


   4   ...
Multiplication     Repeated Addition             Sum

      3 (-5)            -5 + ( -5 ) + ( -5)          - 15


2. What ...
Think-Pair-Share Activity:
Multiply
4.) -5 2         5.) -4 7    6.) 9   (-8)




                                        ...
Use the pattern to find each product.
            2(-5) =
            1(-5) =
            0(-5) =
            -1(-5) =
   ...
Multiply.
9.) -5 (-5)          10.) -3   (-4)



11.) -3 4     (-5)   12.) -8   (-6)   (-2)




                          ...
13.) Based on what we have explored with multiplying integers,
what predictions can you make about dividing integers?



D...
Evaluate the following expressions for:

                a = -3, b = 5, and c = -8


  1.) -3c + b        2.) 5a - b      ...
16.) -5 • 4 + (-40) ÷ (-10)




17.) -3[(6 - 10) ÷ (-2)]




                              10
Extra Practice




                 11
BEFORE YOU LEAVE (Part 1)



18.) Find the mean of the differences in the values of a Canadian
dollar and a US dollar for ...
BEFORE YOU LEAVE (Part 2)


19.) Find the mean of 4, -3, -5, 2, -8.




                                          13
Homework


Castle Homework #2
   due tomorrow




                     14
AIM: Multiplying and Dividing
Integers




                                15
Upcoming SlideShare
Loading in …5
×

Day 5 multiplying and dividing integers

964 views

Published on

0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
964
On SlideShare
0
From Embeds
0
Number of Embeds
302
Actions
Shares
0
Downloads
0
Comments
0
Likes
1
Embeds 0
No embeds

No notes for slide

Day 5 multiplying and dividing integers

  1. 1. AIM: Multiplying and Dividing Integers Do Now Evaluate the following expression. a.) -3 - 5 + (-4) - (-2) 1
  2. 2. Multiplication Repeated Addition Sum 3 (-5) -5 + ( -5 ) + ( -5) - 15 2
  3. 3. Multiplication Repeated Addition Sum 3 (-5) -5 + ( -5 ) + ( -5) - 15 5 (-4) 2 (-8) 4 (-10) 3
  4. 4. Multiplication Repeated Addition Sum 3 (-5) -5 + ( -5 ) + ( -5) - 15 2. What do you notice about the signs of the sums? 3. What do these examples suggest about the product of a positive and a negative integer? 4
  5. 5. Think-Pair-Share Activity: Multiply 4.) -5 2 5.) -4 7 6.) 9 (-8) 5
  6. 6. Use the pattern to find each product. 2(-5) = 1(-5) = 0(-5) = -1(-5) = -2(-5) = ­10 ­9 ­8 ­7 ­6 ­5 ­4 ­3 ­2 ­1 0 1 2 3 4 5 6 7 8 9 10 What conclusion about a negative number multiplied by a negative number based on this pattern? 6
  7. 7. Multiply. 9.) -5 (-5) 10.) -3 (-4) 11.) -3 4 (-5) 12.) -8 (-6) (-2) 7
  8. 8. 13.) Based on what we have explored with multiplying integers, what predictions can you make about dividing integers? Divide 14.) -500 ÷ (-10) 15.) 48 ÷ (-6) 8
  9. 9. Evaluate the following expressions for: a = -3, b = 5, and c = -8 1.) -3c + b 2.) 5a - b c.) ab + c 9
  10. 10. 16.) -5 • 4 + (-40) ÷ (-10) 17.) -3[(6 - 10) ÷ (-2)] 10
  11. 11. Extra Practice 11
  12. 12. BEFORE YOU LEAVE (Part 1) 18.) Find the mean of the differences in the values of a Canadian dollar and a US dollar for 1994 - 1998. The differences were -27 cents, -27 cents, -26 cents, -28 cents, -32 cents. 12
  13. 13. BEFORE YOU LEAVE (Part 2) 19.) Find the mean of 4, -3, -5, 2, -8. 13
  14. 14. Homework Castle Homework #2 due tomorrow 14
  15. 15. AIM: Multiplying and Dividing Integers 15

×