matematika 6. razred procenat i

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  • :

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    6.

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    PAGE

    1

  • , . . , , . , . , , , . . 5 5 , . , , , . , . , , . . !>>>
  • : ? . . 12.300 , 8%. . , . - . . ? ?
  • 100% , 50%, 25%.

    : , , , , ...

    , . :>>>

  • 100% , , - , !60% . .20% , . .: . !

    80%, . .40% ., !

  • , . ! , ( , ). 100. %. : :>>>
  • ? % . 1% : :>>>
  • e : , % , 100 ? , , , . :>>>
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  • 2. :
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  • ?: II ? ?

    II

    :

    1. : ) 10% 500 , ) 120% 40 , ) 0,8% 1500 )

    99 2?

    a) 10% 500 =

    = 50 .

    ) 120% 40 =

    = 48

    ) 0,8% 1500 =

    = 12

    )

    99 2 =

    2=

    2= 2,31 2

    8% 12300 .

    8% 12300 =

    =984 .

    984 .

    2. 1 3,2% . ?

    3,2%

    =

    .

    3. 850. 12% . ?

    I :

    12%

    , 102+850=952

    102 952 .

    II :

    100% 850 12% :

    100%

    .

    4. , VIII , . 60% 350 . ?

    I :

    , 350-210=140. 140 .

    II :

    60% 40% .

    40% 350=

    III :

    60% = 0,6 350 = 210, 350 - 210 = 140. : 100% - 60% = 40%, 40%350 = 140.

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    II

    5600 . , 20% .

    ) ? ) ?

    I :

    ) . 1120 .

    ) . 4480 .

    II :

    )

    EMBED Equation.3

    1120

    4480

    5600

    4480

    5600

    5

    4

    5600

    %

    80

    -

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    II

    :

    1. :

    ) 7% 300; ) 8% 360; ) 32% 12,5;

    ) 150% 6; )

    % 75; ) 0,8% 125

    2. :

    3. 240 35%. ?

    4. , 25% . .

    EMBED Equation.3

    EMBED Equation.3

    EMBED Equation.3

    EMBED Equation.3

    EMBED Equation.3

    EMBED Equation.3

    EMBED Equation.3

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    A

    II

    1. ) 21; ) 28,8; ) 4; ) 9; ) 5,5; ) 1.

    2. 12,5%.

    3. 156

    4. = 192 2, = 56 .

  • : ? III ? ?

    III

    1. :

    ) 25% 12.

    ) 150% 7,5.

    )

    1,1 ?

    x . :

    ) ) )

    2. 12% 22% . 440 , .

    ) ? ) ?

    w:

    ) )

    3. 25% 1500 . w ?

    w:

    25% (x) 75% . :

    4. , 5,6% 448 . ?

    w:

    EMBED Equation.3

    EMBED Equation.3

    EMBED Equation.3

    EMBED Equation.3

    EMBED Equation.3

    U EMBED Equation.3 limunade }e biti 240g soka od limuna.

    EMBED Equation.3 .

    2000 .

    8000 .

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    III

    , , 4% . 124 . ?

    :

    x .

    :

    EMBED Equation.3

    3100 .

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    III

    :

    1. :

    ) 40% 12; ) 120% 288; ) 0,8% 1,2.

    2. 15% . 102 ?

    3. 7,5% 1500 ?

    4. 1080 . 28% . ?

    A

    III

    1. ) 30; ) 240; ) 150.

    2. 120

    3. 20 000

    4. 1500

  • : ? IV ? ?

    IV

    . . , .

    :

    1. VI 32 8 , VI 36 10 . ?

    :

    :

    VI :

    VI:

    VI ( % ) .

    2. 180 , 135 . ?

    :

    I :

    45 . .

    25%.

    II :

    :

    . 100% 75% % 25.

    3. 250 , , 215 . ?

    :

    :

    EMBED Equation.3

    86% .

    4. 5 7 ?

    :

    :

    40%.

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    IV

    96, 112 . 54, 60 . .

    :

    I :

    II :

    .

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    IV

    :

    1. 16 :

    ) 16; ) 32; ) 64; ) 80; ) 128 ?

    2. 160 180 , -?

    3. 150 30 20 . ?

    4. ) 8 10 ? ) 15 ?

    A

    IV

    1. 100%, 50%, 25%, 20%, 12,5%.

    2. 12,5%.

    3. 10%.

    4. ) 25%; ) 12 (125%

    = 15).

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  • : V ? ? ?

    V

    1. 8% 20% ?

    :

    .

    2. 2500 , 1750 . ?

    :

    750 . .

    3. 1 80 , 25%. 25%. ?

    :

    25% :

    125% 80 =

    (

    )

    100 25% :

    100%-25%=75% , 75%

    =

    =75 .

    (

    .

    .

    4. 55% .

    ) 120 ?

    ) 99 ?

    :

    ) 55% 45%.

    45%

    54 .

    ) x .

    99 220 .

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    V

    . . 3 :

    % .

    PERIN TAWIR

    TO[IN TAWIR

    KOLETOV TAWIR

    V

    :

    1. 10%. : ) 19%, ) 81%, ) 10%, ) .

    .

    2. 20%, 20%. :

    ) 20 , 10 ;) ,

    3. 140 , 25%. 140 ?

    4. 4.3 . , 7,5% ?

    A

    V

    1. ) 19%

    2. ) 4%. ) 4%.

    3. 20%

    4. 0,3.