Wednesday, 2 May 2012

I have a question for you!

Hello Division 5 students,

I am beginning to plan my son's Matthew's birthday party.   He is inviting 12 children to his party and I need to figure out how many pizzas I need to order.   A large pizza has 8 slices.   I would like to buy enough large pizzas so that each child can have 3 slices.   How many pizzas do I need to order to have enough slices for all the children?

Can you help me?   Please write your answers in the comment section.

Thanks for your help,   Mrs. Barker :)
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50 comments:

  1. Sarah2 May 2012 at 15:54

    So first of all you have to figure out how many pieces of pizza we need in total for 12 people providing that each person would have 3 slices, so 3 times 12= 36 We have to find out how many whole pizzas should be enough for 12 children. 36 divide 8=4 2/8. 4 2/8 is bigger then 4, therefore I have to buy 5 whole pizzas to feed all my guests, there will be some left over.

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    1. Jonathan2 May 2012 at 17:47

      Sarah I agree with you.I have the same answer as you andI did the same thing as you!!!

      Delete
  2. Jennifer Barker2 May 2012 at 16:21

    Sarah, I am so pleased you explained your answer! Like I always say I am happy you got the answer but the most important part is being able to tell me how you got the answer! Thanks for responding, Mrs. Barker

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  3. cheesy nicky2 May 2012 at 16:25

    There will be 4 slices left over Mrs.Barker can have them!

    Nick

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  4. Rachellyne2 May 2012 at 16:39

    In Matthew's birthday, there are 12 kids, then you said "we need to find out the answer" So, what I did was, I made 12 circles. Then I added 3 in each circle, what I got was 36. After that, I doubled checked by multiplying by 3's. 3 times 12 equals 36. And that's how I got my answer. 3 1/2.

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    1. Jennifer Barker2 May 2012 at 17:59

      Rachellyne - You have displayed some great thinking. The only problem is that I am not allowed to order half of a pizza. What do you recommend?

      Delete
    2. Rachellyne2 May 2012 at 21:18

      So I read Sarah's answer, and I tried it. Since you can't order half of a pizza. I recommend you to buy 4 pizzas for the 12 kids. There will be a few leftovers for you. :) Sincerly, Rachellyne.

      Delete
    3. Jennifer Barker2 May 2012 at 21:20

      Rachellyne,

      Can you check your answer again. Draw 3 and a half pizzas and see how many slices that gives you. Each large pizza has 8 slices. Let me know if you have enough to feed 3 pieces to each of the 12 kids.

      Thanks, Mrs. Barker

      Delete
    4. Jennifer Barker2 May 2012 at 21:21

      Try counting again with 4 pizzas. ~ Mrs. Barker

      Delete
    5. Rachellyne ;D2 May 2012 at 21:43

      You can buy 5 boxes of large pizzas the kids can have 3 each pizzas including Matthew so you can have 1 extra slice leftover 5 boxes (8 slices) so 40 divided by 4 equal 13.1 Sincerly , Rachellyne BTW this is the last comment.XD

      Delete
  5. Vincent2 May 2012 at 16:44

    12x3 = 36 some will be left over.I found 5 pizzas will be needed .I found the answer using multiplecation

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    1. Jennifer Barker2 May 2012 at 21:22

      Vincent,
      You are correct. I think I will need 5 pizzas. I am curious what steps you took after you figured out you needed 36 slices. How did you determine that 36 slices would require 5 pizzas?

      Thanks, Mrs. Barker

      Delete
  6. Emily2 May 2012 at 16:59

    I think the answer is 4 and a half of pizza

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    Replies
    1. Jennifer Barker2 May 2012 at 21:23

      I am not allowed to order half of a pizza so what do you recommend I do Emily?

      Thanks, Mrs. Barker

      Delete
  7. Amos XD2 May 2012 at 17:05

    i agree with them there are 4 left over i got the answer by useing a calculater and there will be 5 large pizzas to feed the children

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    Replies
    1. Jennifer Barker2 May 2012 at 21:25

      Using a calculator is another strategy. I am glad you tried this. Amos, how did you know which numbers to enter into the calculator and what operations to use. Did you multiply, add, subtract, or divide? Would you mind sharing how you found the answer with me?

      Thanks, Mrs. Barker

      Delete
    2. Amos ------______-------3 May 2012 at 16:07

      first 3x6 is 36 and each large pizza had 8 slices so i thought each child ate 3 so i calculated i tried 4x8 but it was to small so and then i tried 5x8 =40 that is enough

      Delete
  8. Anonymous2 May 2012 at 17:22

    i agree with everyone. i use multiplecation.i did it with no help.the answer 31/2

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    Replies
    1. Jennifer Barker2 May 2012 at 21:26

      I am confused by your answer. Could you tell me a bit more and how you discovered your answer. Thanks, Mrs. Barker

      Delete
  9. Anonymous2 May 2012 at 17:24

    sorry im melissa the only way to comment is like this

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    1. Jennifer Barker2 May 2012 at 21:30

      Melissa, this way works too. You do not need to write your name. You can add it in the comment as you did above. Have you had a chance to try to discover how many pizzas I need to order?

      Thanks, Mrs. Barker

      Delete
  10. Chelsea2 May 2012 at 17:52

    I agree to I did what Rachellyne did and got the same answer it is 36.

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    1. Jennifer Barker2 May 2012 at 21:27

      Thanks for working on this Chelsea. So you have figured out that I need 36 slices of pizza. If each large pizza has 8 slices, can you figure out how many pizzas I will need to order.

      Thanks, Mrs. Barker

      Delete
  11. Anonymous2 May 2012 at 19:02

    I had the same answer as Amos.You need 5 pizzas.You will have 4
    leftovers.All together there is 63 slices.

    Lucy

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    Replies
    1. Jennifer Barker2 May 2012 at 21:31

      Hi Lucy,

      I agree that I will need 5 pizzas but I am unsure what you mean when you wrote that altogether there is 63 slices. Can you explain this for me?

      Thanks, Mrs. Barker

      Delete
    2. Anonymous8 May 2012 at 19:57

      I put the wrong number 63,it should be 36.
      If you add your self your husband and your daughter
      and Mattew and 12 childeren you will need 6 large
      pizzas.

      Delete
  12. Erik2 May 2012 at 20:49

    4 1/2 but since you can't have 1/2 5 boxes will do.

    ReplyDelete
    Replies
    1. Jennifer Barker2 May 2012 at 21:32

      I agree Erik. How many extra slices does that leave for me?

      Thanks, Mrs. Barker

      Delete
  13. ALLAN2 May 2012 at 21:26

    ALLAN

    I USE MULTIPLICATION TO ANSWER THE QUESTION . I THINK THE ANSWER IS YOU NEED TO ORDER 5 LARGE PIECES TO FEED 12 CHILDREN.

    ReplyDelete
  14. Jennifer Barker2 May 2012 at 21:28

    Allan,
    Thank you for working out the answer for me. Did you use any other operations other than multiplication to discover the answer. Did you subtract, add, or divide?

    It is getting late, are you going to bed soon?

    Take Care, Mrs. Barker

    ReplyDelete
  15. Anonymous2 May 2012 at 21:36

    I don't agree with any of them im not sure if im right but I think you guys forgot to include the pizza for Matthew.The way I did it was like this:There were 13 people I tried 8x4 at first but it equeled 32 so I tried 8x5 which equeled 40 so I think they only have 1 leftover By: Steven

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    1. Jennifer Barker3 May 2012 at 08:29

      Steven,

      WOW!!! I completely forgot about Matthew. You have really been thinking critically. I am so impressed! Thank you for solving the problem Steven. I also forgot to add that Scott, Megan and I will also be there. Scott and I can eat 3 pieces each and Megan only eats 1 piece. Would 5 pizzas be enough to include the rest of the family?

      Mrs. Barker

      Delete
    2. Rachellyne S3 May 2012 at 14:53

      Mrs.Barker , You could have 6 pizzas and then you could have 2 slices that are leftover because last time i suggested 5 and 1 leftover for Megan but I forgot you and Mr.Barker so thank you for rememberng that Mrs.Barker! By Rachellyne

      Delete
    3. Boris Chau3 May 2012 at 22:54

      Hey Steven I agree with you I though about Mrs barker and her family too but that time I never knew how to post my comments on the web page

      Boris

      Delete
  16. Rachellyne ;D2 May 2012 at 21:53

    I agree with Steven plus I also dont agree with all of them except YOURS . So, i hate to say this but you are RIGHT. Sincerly , RACHELLYNE TEE HEE!

    ReplyDelete
  17. Anonymous2 May 2012 at 22:29

    I agree with Lucy I also don't agree with Steven



    Sincerely suki

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    Replies
    1. Jennifer Barker3 May 2012 at 08:30

      Lucy, I am pleased that you have an opinion. Would you mind sharing your reasons for why you agree with one answer over another?

      Thanks, Mrs. Barker

      Delete
    2. Melissa23 May 2012 at 17:50

      umm Mrs.Barker that is Suki not Lucy

      Delete
  18. Mr. Jackson3 May 2012 at 13:12

    Mrs. Barker and Div 5, I love this little project, very cool and exciting!!! And I love pizza too :)

    ReplyDelete
  19. Rachellyne S3 May 2012 at 14:59

    Mr.Jackson can have the 2 leftover or Mrs.Robson! By Rachellyne

    ReplyDelete
  20. Amos -------______-------3 May 2012 at 16:11

    you would need 6 large pizzzas to feed your family and the children you will have 2 slices left over

    ReplyDelete
  21. Amos ----------_____________----------3 May 2012 at 16:16

    this was fun can you give us questions like this every once a week thanks for being my teacher i really appreciate your helping and i hope you will be my teacer next year
    Thanks Mrs.Barker

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    Replies
    1. Anonymous3 May 2012 at 19:06

      I also thought it was fun to do this math question online.It helps me improve my math. Sent by:Steven

      Delete
    2. Boris Chau3 May 2012 at 23:33

      Hey Steven sorry but I don't really agree with you but Mrs Barker and her family each gets a slice of pizza it won't be even to the Children and her family since Matthew's friends get 3 slices the rest get 1 slice only

      Send by Boris

      Delete
  22. Boris Chau3 May 2012 at 22:35

    5 pizzas and 4 left


    Boris Chau

    ReplyDelete
  23. Amos ----------_________________________________----------------------------3 May 2012 at 23:23

    hi Mrs Barker i agree with steven i like doing this online

    ReplyDelete
  24. ALLAN4 May 2012 at 08:15

    Allan
    Hi Mrs Barker it is a great on line game for us . I like it. So now I think you invited 12 kids and each one need 3 slices then 12 times 3 equal 36 . And your family has 4 person then 4 times 3 equal 12. So 36 plus 12 equal 48 . Now 1 large pizza has 8 slices .
    48 divided 8 equal 6 so I think you need to order 6 large pizzas for your son's birthday party.

    ReplyDelete
  25. Jennifer Barker4 May 2012 at 18:13

    Division 5,

    You did a great job contributing answers. I will order 6 pizzas. Thank you for all your help!

    Have a great weekend, Mrs. Barker

    ReplyDelete
  26. Unknown4 May 2012 at 19:56

    Wow Mrs. Barker. I am really impressed with the math learners in your class. The thing I love the best, is how well they explain their thinking. It is interesting to see how different people think and solve the same problem. Amazing.

    Mrs. Schwartz

    ReplyDelete

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