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Math Help - Division: The big 7 way

  1. #1
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    Division: The big 7 way

    Does anyone no how to divide1702 by 37. It needs to be done the Big 7 way and need to show your work. We have this new math program in the 5th grade and we do not get books so if you miss any class time you are out of luck.
    thanks
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    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by jojo26 View Post
    Does anyone no how to divide1702 by 37. It needs to be done the Big 7 way and need to show your work. We have this new math program in the 5th grade and we do not get books so if you miss any class time you are out of luck.
    thanks
    i have no idea what you are refering to when you say the "big 7" way. i doubt any general division algorithm would be called that, but anyway, can you describe what you are talking about? maybe we can figure it out. i hope you are not referring to the division sign that looks something like )------- when you say big 7, is that it? are you required to do long or short division?
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    I am sorry my daughter went to bed and I cannot give any explanation. All she had told me was that it was "the big 7" way. Whatever happened to do what you have to do as an individual and as long as you repeatedly get the right answer....WHO CARES HOW YOU GOT THERE
    Thanks anyway for your response and attempt to help with limited help on my part.
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  4. #4
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by jojo26 View Post
    I am sorry my daughter went to bed and I cannot give any explanation. All she had told me was that it was "the big 7" way. Whatever happened to do what you have to do as an individual and as long as you repeatedly get the right answer....WHO CARES HOW YOU GOT THERE
    Thanks anyway for your response and attempt to help with limited help on my part.

    Code:
     ___46__
    37 ) 1702
         -148
          222
         -222
            0
    Here's a quick run through. you can consult google or some other online resource to further your understanding. i will do long division, there is a short way as well using the "big 7" if that is the one you want, let us know


    so we set up the 37 and the 1702 as you see above. then you start to see (starting from the first digit of 1702) what 37 can divide into. you ask, can 37 go into 1? obviously no. can it go into 17? not on Wednesdays. can it go into 170? yup! how many time? 4 times! so we find 4 times 37 and we get 148. then we subtract 148 from 170 and we are left with 22. but we bring the remaining 2 down from the last part of 1702 to get 222, and the process starts over. 37 can't go into 2 or 22, but it can go into 222 6 times, and 6 times 37 is 222, so we subtract that from 222 and get 0. so 37 goes into 1702 46 times and leaves no remainder

    i can't get this thing to align properly!

    i give up
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  5. #5
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    From Not Found
    Odd, the link doesn't work. Punch it in google and it will show up safe and sound.

    Partial-Quotients Method (big 7) is an estimation method to division. At each step, you find a partial answer (called a partial quotient). These are then added to find the answer. You write the partial answers (quotients) in the column to the right of the problem.

    Traditional Long Division is the long division most adults learned. The steps are:
    1. Divide
    2. Multiply (to check your division)
    3. Subtract
    4. Bring Down
    5. Do it all again
    By the end of the year, all students should be able to divide using the traditional long division method.

    Division number stories are division problems which are written out in pictures and number sentences. The pictures are simple and are supposed to help visualize the answers.

    Estimation use in division is supposed to HELP. Don't make it harder than it needs to be. Use easy numbers so you can get a ballpark idea of the answer. For example, 7896 can be thought of as 6006=100, or 7206=120, or something like that. You NEED to write your answer for your estimation so you know what the actual answer is supposed to be close to!!!
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  6. #6
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by Truthbetold View Post
    From Not Found
    Odd, the link doesn't work. Punch it in google and it will show up safe and sound.

    Partial-Quotients Method (big 7) is an estimation method to division. At each step, you find a partial answer (called a partial quotient). These are then added to find the answer. You write the partial answers (quotients) in the column to the right of the problem.
    i'd like to see an example of this
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  7. #7
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    i'd like to see an example of this
    If I get it, here is one:

    8460/5.

    First do 85/5 = 17.
    next do 60/5= 12
    And you have 1712.
    and the exact answer in long division is 1692.
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  8. #8
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by Truthbetold View Post
    If I get it, here is one:

    8460/5.

    First do 85/5 = 17.
    next do 60/5= 12
    And you have 1712.
    and the exact answer in long division is 1692.
    hey, that's not such a bad estimate. ok, thanks
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  9. #9
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    Quote Originally Posted by Truthbetold View Post
    If I get it, here is one:

    8460/5.

    First do 85/5 = 17.
    next do 60/5= 12
    And you have 1712.
    and the exact answer in long division is 1692.
    8460/5 = 8500/5 - 40/5 = 1700 - 8 = 1692

    or:

    8460/5 = 8400/5 + 60/5 = 1680 + 12 = 1692

    seem better to me.

    RonL
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  10. #10
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    Example of the big 7 (seven)

    Quote Originally Posted by Jhevon View Post
    i'd like to see an example of this[/color][/color][/size]
    [/font]

    Code:
     
    120/6=?
      _____
    6 ) 120 |
       -60 |10 (10*6=60)
        60 |Well that wasn't quite enough but we can try again...
       -60 |10
         0 |Cool!  So...
     
    10+10 =20
     
    120/6=20
     
    Note this works too:
      _____
    6 ) 120 |
       -30 |5 
        90 |
       -60 |10
        30 |
       -30 |5
         0 |
     
    5+10+5=20
     
    120/6=20
     
    Note this looks like a big 7:
     ______
     )     |
           |
           |
           |
           |
           |
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  11. #11
    Junior Member Lonehwolf's Avatar
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    The conlusion to this "Big 7" division seems to have nailed it in the last few posts. I just hate how they called it "Big 7". They try teaching the kids better methods to remember things, while cutting the traditional, working, methods out

    Well, the method used by Truthbetold seemed quite nice. The approximation was definitely close =o
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