Sunday, 23 March 2014

Maths Week 8

We have been learning a range of subtraction strategies over the past few weeks. To show off your learning I want you to:

1.write a subtraction word problem as a comment to this post.
Think carefully about what strategy you want people to use when they answer it.

2. Answer someone else's subtraction problem as a reply to their post- write next to your answer which number strategy you used.

Subtraction strategies:

-Subtracting ones and tens
-Subtracting in parts
-Jumping the number line
-Don't subtract-add!
-Subtracting a tidy number then adding back on

62 comments:

  1. Jane had saved $123 in pocket money. She spent $99 on some new shoes. How much money does she have left?
    (Don't forget to write down your strategy!)

    ReplyDelete
    Replies
    1. 100-99=1 1+23=24 123-99=24

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    2. 100-99=1 1+23=24

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    3. Jack had $193 and Joseph stole 46. How much does Jack have left

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    4. 100-99=1 1+23=24 123-99=24

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    5. 123-100=23 23+1=24

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    6. Zara had 28 lollies and she earnt 102 more then she gave her friend Naomi 46 and Harrison stole and ate 62. how many did she have left?

      Delete
  2. Mimi had $100 she gave $68 and then Mimi $2 for her mum how much does Mimi have

    ReplyDelete
  3. Annie had 60 apple trees and 6 friends.

    How meany apple trees dose each friend get?

    ReplyDelete
    Replies
    1. Good work Halie I figured it was a divison problem . It was a really good problem.
      I think it is 10 but i am not sure

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    2. Great problem Halle! I think it was a division question.

      My answer was 10.

      Eve

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    3. Lucy had $ 55 she gave $ 22 How much does Lucy have left?

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    4. 60 divided by 10 = 6
      So the anwser is 10

      Delete
  4. Ben had 1000 coconuts and has 28 moldy ones how many left

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  5. Coco has 589$ and she buys a cat that costs 58$. Then she goes into a shop and spends 28$ how much money does she have left?

    ReplyDelete
    Replies
    1. Great problem Naomi but quite tricky! I think I would add together the $58 and $28 before taking them away :)

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    2. hi Naomi
      58+28=74
      589-74=515

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    3. Hi Naomi
      28+58=86
      589-86=503

      Delete
  6. Mustafa has 100 LEGO sets. He gives 75 sets to charity. how much will he have left?

    ReplyDelete
    Replies
    1. Hi Mitchell I know the anwser it = 25
      FROM ZARA!!!!!!!!!!

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    2. that is so nice of mustafa
      25

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    3. 100-75=25 that is what i think is the problem

      Delete
  7. Thomas has $4000 he donated 400 to charaty how much left

    ReplyDelete
    Replies
    1. 4000-400=3700 ithink that the problem is this

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    2. hi preston
      $4000-400=3600
      !!!!!!!!!!!
      zara

      Delete
  8. At the car park there were 312 cars in floor 1 and in floor 2 there were 63 then 12 left to the ferry. How many are left?

    ReplyDelete
    Replies
    1. Oh! A tricky one Zac. I think I need to add and subtract for this one!

      Delete
  9. Zoe had 94 blocks and gave some to Annie.After she gave them away she had 32.

    How many blocks did Zoe give to Annie?

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  10. Their were 246 people at the shoping mall and 56 people left how meny people were left?

    ReplyDelete
    Replies
    1. Great problem Blake! I think I would take away in parts for this one!

      Delete
  11. if sam had 10 appel and he- 5 it wood = 5

    ReplyDelete
    Replies
    1. It will be 5 because I used my number bounds and counted back!!!

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    2. what about you make it a little bit harder for people next time Sam.

      Delete
  12. Teisha got 19 shals and agostina tuc auay 6. how many shals isteicen by agostina

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  13. sam had 15 appel and he took 5 haw meny did he have.

    ReplyDelete
    Replies
    1. that will be 10 because I counted back and used my number bonds.

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    2. This comment has been removed by a blog administrator.

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  14. there were 126 animals in the zoo five ran away it took them 5 days to find all of them how many hours did it take to find them

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  15. 123-99=24
    123-100=23 +1 =24

    ReplyDelete
  16. good job Eve I think i would use subtaction i think the answer is 62

    ReplyDelete
  17. delership had 100 cars he sold 60 porsha 918 but 18 of them had to give it back how meny cars left at the delership replie
    your anser

    ReplyDelete
  18. Jackie had 156 books at her library 29 people came to borrow books.How many books were still waiting at the library.
    Try to figure it out.

    ReplyDelete
  19. there were 1500 foods inthe supermaket every day 500 foods were sold how many food were sold in a week

    ReplyDelete
  20. Alex had $189 dollars in her sparkly piggy bank. she bought a toy seahorse and a teddy bear. the teddy bear costed 10 dollars and the seahorse costed 75 dollars. how much more money does she have left.
    Try and figure it out.

    ReplyDelete
  21. If HARRISON AND EMILY had twenty people coming to her pet salon and everone brought 4 pets with them how many pets were there!!!!!!!!!

    ReplyDelete
    Replies
    1. it wold be 80 because I used my time tables I love pets and good idea of the pet salon .

      Delete
  22. hannha had 2546 dollars in here bank account she spent 345 how much did she have left.

    ReplyDelete
  23. Clara had 54 sheep on her farm she sold 19 to other people.How many sheep does she have now.
    Try to figure it out.

    ReplyDelete
  24. there was an alien named kate.She had 95 dollars and spent 76 on a space phone. How many does she have left.

    ReplyDelete
    Replies
    1. she have left 19 dollars.
      I used the subtracting ones and tens technique
      by Agostina

      Delete
  25. titan had 32 flowers in his garden 23 died .How many does he have now.
    Try to figure it out

    ReplyDelete
    Replies
    1. it is 9 because I subtract in parts that is a good answer.

      Delete
  26. Harrison had 78 dollars and spent 17 on a pet dog. How many does he have left.

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  27. This comment has been removed by a blog administrator.

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  28. if Blake had 80 apple trees and he had 8 friends how many will each friend get

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  29. if Rachel had 69 dollars and she had spend 29 dollars how many will be left try to figure it out but you cant.

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  30. if Suzie had 900 pets and she sold 34 pets how many pets does she have now

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  31. If Mummy had 59 dollars and she gave $20 to Lucy, how much would she have left?

    ReplyDelete
  32. I have $1000 and I spend $99 and then I spend $97. How much do I have left?

    ReplyDelete
  33. I bought a toy that cost $1000. I had $10000. And I also bought another toy that was $57. How much money do I have left?

    ReplyDelete