4
2100
.. , ..
_________ , _________________________________________
) .
| 1 | . | ) , . ) , . |
| 2 | . | ) 657 = 6 5 7 ) 657 =6 57 ) 657 = 6 57 |
| 3 | : 1 19 = | ) 81 ) 5 ) 41 |
| 4 | : + 500 = 90 * 6 | ) = 40 ) = 500 ) = 5000 |
| 5 | . | ) . ) . |
| 6 | . | )  ;  ;  ;  ; 
)  ;  ;  ;  ; 
|
| 7 | , . | )  1 1 =60 ;
60: 4 * 3 = 45()
)  1. 1=100
100: 2 * 5=250()
|
| 8 | . 20 , 5. 2/5 . ? | ) 20 × 5 = 100 (.) 100: 5 × 2 = 40 (.) : 40 . . ) (20 + 5) × 2= 50 (.) 100: 5 × 2 = 40 (.) 50 40 = 10 (.) : 10 . . |
| 9 | : 0 * (600 200: 4 + 85 * 2) | ) 270 ) 0 ) 730 |
| 10 | 42 ., 6 . ? | ) 26 ) 42 ) 26 |
) .
| 1 | . 120 , 3 15 ? | ____________________________________ ____________________________________ ____________________________________ ____________________________________ ____________________________________ ____________________________________ ____________________________________ ____________________________________ ____________________________________ ____________________________________ |
| 2 | . | X: 3 = 300 |
| 3 | . . 60 /, 70 /. 3 . ? | ____________________________________ ____________________________________ ___________________________________ ____________________________________ ____________________________________ ____________________________________ |
| 4 | , : | 72 506 ..72 056 |
| 5 | . | 928 179 = 567 + 389 = |
|
|
|
4
2100
.. , ..
_________ , _________________________________________
) .
| 1 | : 0 * (600 200: 4 + 85 * 2) | ) 270 ) 0 ) 730 |
| 2 | : 1 19 = | ) 81 ) 5 ) 41 |
| 3 | , . | ) 1 1 =60 ;
60: 4 * 3 = 45()
) 1. 1=100
100: 2 * 5=250()
|
| 4 | : + 500 = 90 * 6 | ) = 40 ) = 500 ) = 5000 |
| 5 | . | ) , . ) , . |
| 6 | . | ) . ) . |
| 7 | . | ) ; ; ; ;
) ; ; ; ;
|
| 8 | 42 ., 6 . ? | ) 26 ) 42 ) 26 |
| 9 | . 20 , 5. 2/5 . ? | ) 20 × 5 = 100 (.) 100: 5 × 2 = 40 (.) : 40 . . ) (20 + 5) × 2= 50 (.) 100: 5 × 2 = 40 (.) 50 40 = 10 (.) : 10 . . |
| 10 | . | ) 657 = 6 5 7 ) 657 =6 57 ) 657 = 6 57 |
