-  . 4
  

  


  #12
  .           4 .     6 .    120 .      .        ,    .        .         ,     , , , .






    1000





 1




1.     ,     .

231, 487, 1000, 999, 791, 308



2. .

2 . 4. 3. +2 . =

4 . 8. +4 . =

7 . 1. 6. +4 . =

9 . 3. 1. 8 . =

7 . 4. 3 . =

6 . 5. 1 . =




 2




1.     ,     .

485, 1000, 329, 888, 643, 905



2. .

4 . 2. 8. +2 . 4. =

5 . 9. +3 . 3. =

9 . +8 . 4. =

7 . 3. 2. 1 . 1. 1. =

4 . 8. 3. 9 . =

8 . 7. 9 . 2. =




 3




1.     385, 721, 908, 444.








2.  .

   350 .     ?











 4




1. .   >, <  =.

8 . 4. . 8. 4.

5 . 3. 4. . 4. 3. 5.

1000 . . 10 .

10 . . 1000 .

7 . 2. . 7. 1.

3 . 7. 5. . 3. 5. 7.



2.  .

   250 .      ?











 5




1.  ,   7  III , 4  II , 9  I .










2.  .

    3   8 .     .











 6




1.  ,   5  III , 3  II , 2  I .










2. .

4 . 2. 3. +1 . 4. 7. =

7 . 8. +1 . 2. 1. =

3 . 9. +4 . 4. =

9 . 2. 3. 5 . =

5 . 8. 1. 1 . 4. =

2 . 4. 1 . 6. =




 , ,      1000





 1




1. .

100 ? 8 =

360 : 9 =

321 + 148 =

846  234 =

42 ? 2 =

360 + 128 =



2.  .

   340 ,     120  .     ?











 2




1. .   >, <  =.

240 + 153 . 401

26 ? 2 . 32

581  301 . 280

810 : 9 . 90

720 + 104 . 924

681  280 . 301



2.  : 825   = 213,  ? 5 = 450.











 3




1. ,    .

243 ? 4

105 ? 6

442 ? 2

674 : 2

528 : 8

387 : 9

875 : 5










2.    360 : b,  b = 6, 9, 10.











 4




1. ,    .

169 ? 4

187 ? 3

183 ? 5

537 : 3

738 : 6

925 : 5

726 : 2










2.  .

  900 . 320    ;    100 ,  ;   .    ?











 5




1. ,    .

589 + 273

824 + 196

427 + 278

312 + 548

375 + 387

627  249

815  537

381  208

382  157

968  639










2.  :  ? 80 = 640, 908   = 508.











 6




1. .

4 ? (200  100) + 50 =

1000  (240 + 260) ? 2 + 843 =

720 : (300  210) + 100 ? 5 =

(230 ? 2  160) : 5 ? 2 =

(120 ? 4  200) : 2 + 60 =



2.    23 ? ,   = 3, 5, 9.











   





 1




1.     1648, 28354, 913526, 304725.










2.  .

  15 ,    10  .      .











 2




1.   :

     

     

   

      










2..   >, <  =.

5104 . 5401

62815 . 62715

103902 . 209301

11205 . 10205

384118 . 394118

73214 . 73251




 3




1.     520813, 61308, 205679, 114800.










2. .

24183 + 1 =

349209 + 1 =

808906 + 1 =

35787  1 =

548230  1 =

726854  1 =

564309  1 =




 4




1.   85304, 251896, 30075, 29169, 5987   .










2.  .

   ,   23999 , 64849 , 6990 , 101250 .     ?     ?











 5




1.   87501, 340984, 7823, 308706, 62720   .










2..   >, <  =.

4806 . 4906

240520 . 24052

999999 . 100000

52004 . 51999

280061 . 279061

741845 .74009




 6




1.     50284, 63981, 105286, 548998.










2. .

381200 + 1 =

80000  1 =

294040 + 1 =

837300  1 =

951499 + 1 =

300000  1 =

567089 + 1 =

40000  1 =

100000  1 =

20000  1 =




      10, 100, 1000 





 1




1.   80000, 75000, 5890, 30800  10 .   .










2.  :  : 300 = 100, 500000 :  = 10











 2




1.   2000, 340, 18, 9421  100 .   .








2.    450000 : d,  d = 10, 100, 1000.











 3




1.   92, 130, 58, 999  1000 .   .










2. .

58 ? 1000 =

305 ? 10 =

2481 ? 100 =

979000 : 1000 =

80100 : 10 =

174200 : 100 =




 4




1.   380000, 24100, 6800, 190000  10 .   .










2.  :  ? 1000 = 51000, 7800 :  = 78











 5




1.   71000, 23800, 990000, 5400  100 .   .










2.  .

  10 ,    10  .      .











 6




1.   97000, 252000, 190000, 1000000  1000 .   .










2.  .

  200 ,    100  .      .











     





 1




1.  .

1  = . 

1  = .  = . 

1  = .  = .  = .. 

1  = .  = .  = .  =  



2.  .

  5 ,    1 .      ?    .











 2




1..   >, <  =.

10  . 100 

1  . 1000 

100  . 10 

1  . 1000 

100  . 1000 

10  . 1000 



2.  .

  400 ,     200  .     ,    1 ?











 3




1.  .

9000  = . 

3  = .. 

7300  = .  . 

300  = . 

820  = .  . 

1900  = .  . 

740  = .  . 



2.  .

  4 ,      3  .    ?    .











 4




1. .   >, <  =.

1700  . 1 7 

3000  . 30 

20  . 2000 

4  . 400 

2  60  . 260 

10  10  . 10100 

5  . 501 



2.  .

   400 .   ?  .     ?











 5




1.  8000 , 3500 , 100000 , 26000   .








2.  .

  60 .   4 .     ?      .











 6




1.  3 , 41 , 400 , 8  200   .








2.  .

  3 ,     10  ,      200  ,   .   ?    ,   .











     





 1




1.  .

1 


 = .. 




1 


 = .. 


 = . 




1 


 =  


 =  


 = . 




1 


 = . 


 = . 


 = .


 = . 






2.  .

  10 ,     20  .    .











 2




1. .   >, <  =.

100 


 . 1




2 


 . 2000 




500 


 . 5




6000000 


 . 6




300 


 . 3




70 


 . 70000 







  .


   .

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