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Administrator   
02.04.2009
(4 )  

1. 28.

 

2  2  2  2  2  = 28

                                                                                                                                   2  

2. . 36. ?

     ∙ 3               - 19           + 10            : 9            + 86            : 3            + 41            : 2

                                                                                                                                            36

                                                                                                                                     5  

3. 30 5 . , 42 ?

                                                                                                                                            3   

4. 64, – 64, 60. ?

                                                                                                                                             5  

5. , . ?

                                                                                                                                         1    

6. 4 , , .

     
                                                                                                                                        3     

7. , > <.

 

)  *           * * *                    )  4 * *          3 * *                  )  9 * *           1000

)  1 * *           9 *                 )   * 5 *          5 * *                 )  394           3 * 2

                                                                                                                                           3  

8. , , . ?

 

                                                                                                                                                 2  

9. 5 3 , 4  4 . . ?

                                                                                                                                                     3                                                                                                                        :  27                    4

1.  22 + 2+2+2=28

  

2.

 

     ∙ 3               - 19           + 10            : 9            + 86            : 3            + 41            : 2

                                                                                                                                            36

24           72                53             63             7                  93            31                 72               36

   

3. 1) 30 : 5 =6 . – 1 .

    2) 42 :6 = 7 .

    : 7 .

 

4.           64      .                

                      _______ _______ _ _ _ _ _ _

              64   _ _ _ _ _  _______ _________

               60 ________ _ _ _ _ _ _________

 

   1) 64 + 64+ 60 =188 –

   2) 188 : 2 = 94 –

   3) 94 – 64 = 30 –

: 30 .

 

5. :

 

6.

    

7. ) *  < * * *                   ) 4 * *  > 3 * *                ) 9 * * < 1000

    ) 1 * * > 9 *                ) * 5 * …..   5 * *            ) 3 9 4 > 3 * 2

 

8.

9. : .

         

                                                 

   1   4

1.  , , – . ?

: ________________                                                                            2

 

2. 10 . , 4 , ?

   

: __________________                                                                                       3

 

3. - 85 , - 1 25 . ?

: _____________________________________________________________ 1

 

4. , . 6 . ?

     

:_____________________________________                                                  2

 

4. 15, 13. ?

        

: _________________________________________                                          7

  
  1. , . 45 , 55 . 75 ?
      

: _____________________________________________                                5

 :  20   1  4  

1.   1961

   2.   : 5 2 .   

3. 85 = 1 25

  : .

  

4. 

                                                   6 : 3 = 2

                                       6

                                                     2 ∙ 2 = 4 .

                      : 2 , 4 – .  

5. 1) 15 + 13 = 28 – 7 7 .

    2)  28 : 7 = 4 – 1 1- .

    3)  4 ∙ 3 = 12 – 3- 3- .

    4) 15 – 12 = 3 – 1 .

    5) 4 – 3 = 1 – .

             :  3 , 1 – .

  

5. 1) 45 + 55 + 75 = 175 . – .

    2) 175 : 2  = .

           : .
 
. 2009 .