matematika 6. razred procenat i
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procenat matematikaTRANSCRIPT
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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. :
- 3. :
- 4. :
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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.