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Девиз нашего урока: “ Будем активно мыслить! ” PowerPoint PPT Presentation


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Девиз нашего урока: “ Будем активно мыслить! ”

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167 : ..235-542-145 ()- 2012


: !


1. 2 ? ) 200 ) 20 ) 60 ) 120

2. 3 ?) 500 ) 300 ) 180 ) 60 3. 2 ?a) 28 ) 24 ) 48 ) 504. :

a)1 = 10

) 1 = 1

) 1 = 100

) 1 = 100


!

1. 2 ? ) 200 ) 20 ) 60 ) 120

2. 3 ?) 500 ) 300 ) 180 ) 60 3. 2 ?a) 28 ) 24 ) 48 ) 504. :

a)1 = 10

) 1 = 1

) 1 = 100

) 1 = 100


.

2

< 20 ?

-18

+ 18


0 6 9 10 12 33 34 45

2 72 50 36 30 50 28 18 72


, , (1048-1123)


. . .

+a=n x-b=c

=x=

:b=c d:x=k

= x=

d-x=k x.a=n

x= x=


: - - -- - -


:- --


27 . .

:


112 , = 25 , =37 . ?


: :=25 =37 P= 112:=?


: :=25 P=++=37 =P-a- P= 112 =112-25-37=50()

: : =50

=?


56+56+56+56+56+56+56+56+56+56=

2 ( 37945)=

498+499+500+501+502=


.80, 1(,,). .27, 11. .52, 7.


,


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