# ДЕЛИМОСТЬ - PowerPoint PPT Presentation

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ДЕЛИМОСТЬ. ОЛИМПИАДНЫЕ ЗАДАЧИ. ПРОЕКТ ВЫПОЛНИЛИ : БУКРЕЕВ КОНСТАНТИН, ЛАЗУТКИН ДАНИЛА 6 Б класс. Вернулся Дядя Фёдор со школы домой и начал делать домашнее задание по математике.

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ДЕЛИМОСТЬ

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### 1

3.

:

abcdef = 100000 + 10000b + 1000 + 100d +10 + f =

= (99999 + 9999b+ 999 + 99d + 9) +(+b++d++f ).

9, .

a+b+c+d+e+f 9, 9, .. abcdef 9.

### 2

4.

: abcde=(10000a+1000b+100c)++(10d+e).

4, , .

de 4, 4.

1121314151 - 1

10?

:

, .. 0.

### 4

43 , , 45.

:

= 43b - , 9 5,

= 430 = 435 ( 5),

9 =2 =6.

:2430, 6435.

, .

### , ,

:

b= 10+b, 10a+b=2ab,

, b -, b = 2k.

10a+2k= 2abb=6,k=3,a=3

5a+k = abb=8, k =4, a =3/4 k = a(b-5) -

a = k/(b-5)b = 10 - !

: 36.

. , , . .

### 6

. , 7, 11 13.

:

bb = abc1000 + abc = =abc(1000 +1)=1001abc = 71113abc.

### 7

3024?

:

5 10 ( );

11121314 .. 10101010=10000, 3024;

1234 - ,

6789.

: 6, 7, 8, 9.

### 8

, , 66?

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66=2311, 11 . : .

### 11

, , , . , , , . , 1000 ?

:

, 3, , 3 1000.

### 9

, 12, 31, 436.

:

X , Y - , 31+12=436.

.. 12 436 4, X 4, .. =4,8,12,

X 12, .. 436 12.

=8, Y=(436-314):12 , =4, Y=(436-314):12=26.

: 26

### 12

70 , 5/9 , 7/17 - . ?

:

, , 17, 17, 34, 51 68;

, , 53, 36, 19 2,

9, .. 36.

: 36 , 34.

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