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    MATHS Exhibition

    Presentation

    ON ->MATHS AS

    MAGIC

    2014-15Class - XI ScienceUT 1 (Project)

    Made B So!ra" Panda( #eader)

    - $%&i' Bisas - $an Banerjee - $s&is& anjan

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    $i* $nd Conce+t, T&ePresentation

    The Basic Aim And The Concept Of This

    Presentation Is To Draw Everyones Attention That

    Apart From The Calculations And Other arious

    !cientific Operations "hich Involves #athematics $

    The !u%&ect Is #uch #ore Deeper And Immense

    Than That $

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    The 7-11-13 MagicThis Magic (Trick) makes you ook

    ike your !rai" is a mega #as$cacua$or%

    Ask a #rie"& $o 'ri$e &o'" AN $hree&igi$ "um!er such as 31 or **+, Ask

    $hem $o mu$iy $he "um!er !y. 7 ( 1s$mu$iyi"g &igi$ )

    . 11("&mu$iyi"g &igi$ )

    . 13(3r&mu$iyi"g &igi$ )

    ,,,!u$ e/e" i# your #rie"& has use& acacua$or0 you 'i ha/e 'ri$$e"&o'" $he a"s'er ages ago%

    .no /o

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    T&e Secret

    a you &o is 'ri$e ou$ $he s$ar$i"g"um!er $'ice% So 31 'i !ecome3131 a"& **+ 'i !ecome **+**+,

    ou &o"$ !eie/e i$2 e $ry i$ o" Acacua$or a"& see #or yourse#%, Goo"0 u$ i" AN $hree &igi$ "um!er$he" .7 .11 . 13 a"& see 'ha$ youge$%

    NOT4 5 ou Ha/e To 6irs$ Seec$ AThree igi$ Num!er The" Mu$iy I$8y .7 a"& $he" .11 .13 or i$ 'o"9$'ork

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    %% Age A"aysis %%

    Multiply the first number of your age by5

    Add 3 to your new number

    Double that figure

    Add the second number of your age to

    that figure

    And the result is

    Then Subtract It By

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    %% Age A"aysis %%

    The steps!Multiply the first number of your age by 5Add 3 to your new numberDouble that figure

    Add the second number of your age to thatfigureSubtract from that resultAnd the result is

    "ow it #or$s

    T&e Tric'

    $not&er arit&*etic tric'

    3!*%ers are sooo cool Isnt

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    Mi"&-:ea&i"g Num!erMagic

    Thi"k o# a "um!er0 a"y osi$i/e i"$eger (!u$ kee i$sma so you ca" &o comu$a$io"s i" your hea&),

    1, S;uare i$,

    , A&& $he resu$ $o yourorigi"a "um!er,

    3, i/i&e !y your origi"a

    "um!er,

    +, A&&0 oh I &o"$ k"o'0say 17,

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    $re5o!

    6ettin7

    T&eSa*e

    3!*%er,r

    3ot222

    re5o!

    $l(as

    6ettin78,r

    ot

    222

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    !! Do You Feel Lucky !!

    Select a three%digit number&nter it twice in the calculator'e(g( )*3)*3+

    Double that figureThe number is di,isible by ))

    The number is di,isible by It-s.riginal 3%digit /umberThe number is di,isible by 0 and)3 Too 111

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    !! Do You Feel

    Lucky !!Ho' i$ orksThe Tric'(

    Enterin) a three*di)it num%er twice +e$)$

    ,-.,-./ is e0uivalent to multiplyin) it %y

    ,11,$ !ince ,11, 2 ,, 3 4 3 ,.5 the si3*di)it

    num%er will %e divisi%le %y 45 ,,5 ,. and theori)inal three*di)it num%er 667777

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    !! Curious Maths !!

    Try this and you will be ama2ed

    ollow the rules

    And do not cheat

    4ust do it step%by%step

    /ere e 7o9

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    !! Curious Maths !!

    ic$ a number from 5 to 6

    Subtract 5Multiply by 3

    S7uare the number

    ($ha$ is mu$iy $he "um!er !y i$se#NOT s;uare roo$? a"& yes0 you ca"

    s;uare @, @ . @ @)

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    %% Curious Ma$hs %%

    Add the digits until you get onlyone digit'e(g( 8 9 : 8 9 ); 9 ): ; 9 )+

    If the number is less than 5< add 5 .therwise< subtract 8

    Multiply by *

    Subtract It By

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    $re5o!$l(a

    s

    6ettin7T&

    eSa*e

    3!*%er,

    r

    ot2222

    2

    $re5o!6

    ettin74

    $l(a

    s22,r

    3ot00

    /**222

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    %% i/isio" Ta!e @B %%

    !ometimes It 8appens That "e For)et The

    Division Ta%le Of 196$$

    Then "hat Did "e Do :::8ere A ;ittle But

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    %% i/isio" Ta!e @B %%

    )=6 9*=6 93=6 98=6 9

    5=6 9=6 90=6 9>=6 96=6 9);=6 9

    ;)*3

    850>6

    6>0

    583*);

    T&is Is 3ot

    Correct B!t;ait Its

    Startin7

    3o ItsCorrect

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    %% i/isio" Ta!e @B %%

    How t orksou i O!ser/e Here Tha$ I" This Ta!eThe 6irs$ igi$ i S$ar$ 6rom @ A"& 4"&I" B A"& The Seco"& ou& S$ar$ 6rom BA"& 4"& I" ero A"& ou ou& Ge$ TheTa!e O# @B ????,,

    -

    S$u&yi"g i/isio" Ta!es I" Ai##ere"$ ay Is The A"s'er To HO I$'orks ?

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    So ;e ,%ser"ed T&at T&eS!%ject , Mat&e*atics Is

    3ot Bo!nded To Scienti>c,%ser"ations $nd

    Calc!lation B!t It Is ;a:ar Beond T&at =

    T&ats ;& It Is T&e

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    Ma&e8y---

    Soura/Da"&aE+@(+1)

    A!hik8is'as-@

    Aya"8a"erFee

    Ashish:a"Fa"

    GIScie"ce

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    Tha"k ou


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