210 + 328 + 341 =

(a)  

3 914 + 253 + 315 =

(a)  

2 963 + 1 583 + 1 143 =

(a)  

1 379 + 4 214 + 1 062 =

(a)  

4 847 - 4 603 =

(a)  

5 789 - 1 412 =

(a)  

4 270 - 1 546 =


(a)  

9 725 - 2 836 =

(a)  

7 000 - 2 563 =

(a)