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# ОБОБЩЕНИЕ НА ТЕМАТА “ ДЕЛИМОСТ” PowerPoint PPT Presentation

ОБОБЩЕНИЕ НА ТЕМАТА “ ДЕЛИМОСТ”. ОБОБЩЕНИЕ НА ТЕМАТА “ ДЕЛИМОСТ”. Признаци за делимост на 2, 3 и 4. Деление с остатък: 55:6 = 9 ( ост. 1 ) Делител и кратно: с = а.в или с:а =в; или с:в = а с – кратно ; а, в – делители Пример: 96 = 12.8

ОБОБЩЕНИЕ НА ТЕМАТА “ ДЕЛИМОСТ”

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### 2, 3 4

• : 55:6 = 9 ( . 1 )

• : = . : =; : =

; ,

: 96 = 12.8

96 ; 12 8

96:12 = 8 96 : 8 = 12.

3. : , .

: 6 18, 6 18.511.

4. : :

• 2, : 0, 2, 4, 6 8.

: 64; 32; 28; 56; 1190 2, 57 2.

• 3, 3.

: 57 3, 5 + 7 = 12 3, 29 3, 2 + 9 = 11 3.

• 4, , 4.

: 624; 980; 372; 500; 716; 196; 744 4.

5, 0 5

: 120, 675 5, 283 5.

9, 9

: 702, 801, 3105, 84321- 9.

10, 0.

: 150, 9320, 760 10.

25, , 25.

: 825, 400, 1175, 350 25.

: , 3 , 3.

: 3 : 112782; 8133;

25317; 602395; 5002851 38751.

### 5, 9, 10 25

• 1 .

: 2, 5 19, 37, 41.

• 1 .

: 18 2, 3 ,6 9

1 , , , 2 .

. 420 = 2.2.3.5.7198 = 2.3.3.111. , :: 18 : 2;3;6 9.24 : 2;3; 4; 6; 8; 12. : 2; 3 6, 6. : ( 18; 24 ) = 6. , , 1, : 2 9; 7 24; 12 35; 15 28.2. ,: 60; 300; 480 . 12 20, 60 . : ( 12; 20 ) = 60; ( 18; 45 ) = 90 ( 12; 7 ) = 84 = . ( 9; 36 ) = 36, 36 9 .

1 . : 9; 14; 15 27 .2 . 237 ( ), , :) 2; ) 3; ) 5; ) 4; ) 6; ) 9; ) 103. : = 150 = 320) ;) ( ; )) ( ; )) , . = ( ; ). ( ; ).

) 100 4;

) 100 25;

)4 100;

) 25 100;

) 100 ;

) 25.4 5;

) 12;

) 100 1 ;

) 100 ;

) 13 100;

) 100 4 25;

) 25.4 3;

) 2 5 ;

) .

### !

?

3 , 6 , 3 9 , . 11 80 , . . , ?

15.01.2011 : .