Wednesday, February 1, 2017

Class Work

Work presented by young lady and gentlemen from S1-07

Question A
Question B


Question C



Question D



20 comments:

  1. Group members: Teng Jun and Wesley
    b) -23 is more than -27, not -23 is less than -27. Also, a note, the -27 has no '-' sign.
    c) (-12)power of 2 is less than -200, not more than -200

    ReplyDelete
  2. group members:kit hint,zen,royston
    our group is doing question: example 1 (the one in blue)

    we checked and feel that all the answers are correct except question E is wrong we all feel that the answer should be -15 instead of 15

    ReplyDelete
  3. For the third piece of work, example 2 part D the question is 4-(-9)-5
    the working is since there are two negatives it means that 4 is suppose to be added to 9 therefore the answer for 4-(-9) is 13 then minus 5 as stated in the operation finally the answer is 8.

    ReplyDelete
    Replies
    1. B - use math notation instead of El paragraph.
      Is this individual work as I did not see any group members' names?

      Delete
  4. Group members: Joel Tan and Timothy Luk.
    We found out that part a, b, c, d is correct. as 13 is more than -13, -23 is less than 27 and 144 is more than -200, and -13 is less than 6

    ReplyDelete
  5. Group Members:Ryan,Ignatius,Shawn Ng

    Questions
    13+(-6)=7
    Explanation:
    Imagine the -6 as a debt,so that means you have a negative balance.However,you received $13 and paid the $6 Debt,you have $7 Left.
    -21+32=11
    Refer to the above explanation but replace the values 6 and 7 with 21 and 32.
    35+(-8)=27
    Explanation:Refer to above explanation but replace values 21 and 32 with 8 and 35.
    27+(-12)=15
    Explanation:Refer to above explanation but replaces value 8 and 35 with 12 and 27.
    -37+22=-15
    Explanation:Imagine your debt to be more than the money you receive,this means you lessen the debt but still owe money.So,you still owe $15
    -46+18=-28
    Refer to above explanation but replace values 37 with 46 and 22 with 18.
    -110+(-10)=-110
    Explanation:Imagine you already owe $100 but you needed 10 more,you borrow that $10 and so you know owe $110.
    (-20)+(-5)=(-20)-5=-25
    Explanation:Refer to above explanation but change value from 100 to 25 and 10 to 5.

    We are doing Question 2.



    ReplyDelete
  6. group members: Adabel, Ariel, Xing Zi
    Last question: The working for this question is correct

    ReplyDelete
    Replies
    1. B - how do you know they are correct - show your working too pls.

      Delete
  7. Group members: Shaun Ho, Silas, Damien (19-21)
    4)

    A) -7+(-11)+10
    = -18 + 10
    = -8
    B) -10 + 17 + (-21)
    = 7 + (-21)
    = -14
    C) [-9+(-15)]+[-20+30]
    = -24 + [-20+30]
    = -24 + 10
    = -14
    D) [30+(-45)] + [-15+(-10)]
    = -15 + [-15+(-10)]
    = -15 + (-25)
    = -40

    ReplyDelete
  8. Question C
    Group Members: Hong Jie, Wei Le, Hansen
    Question C isn't done, so we will continue it.
    (a) and (b) are all right.
    (c) -7-(-6)-5
    = -7+6-5
    = -6
    (d) 4-(-9)-5
    = 4+9-5
    = 8

    ReplyDelete
  9. Group members: Hsu Hwee, Rayna and Audrey.
    Tier A
    1. -7+(-11)+10=-18+10
    = -8 ( correct )
    2. -10+17+(-21)
    = 7 + (-21)
    = -14
    3. [-9+(-15)]+[-20+30]
    = -24+10
    =-14
    4. [30+(-45)]+[-15+(-10)]=
    -15+-25=-40
    (all correct:)

    ReplyDelete

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