a) 19 395 + 32 278 = 51 673
Verificare:
1) 51 673 - 19 395 = 32 278
2) 51 673 - 32 278 = 19 395
134 204 + 101 904 = 236 108
Verificare:
1) 236 108 - 134 204 = 101 904
2) 236 108 - 101 904 = 134 204
b) 14 806 - 6 997 = 4 809
Verificare:
1) 14 806 - 4 809 = 6 997
2) 6 997 + 4 809 = 14 806
590 203 - 495 334 = 49 869
Verificare:
1) 590 203 - 49 869 = 495 334
2) 495 334 + 49 869 = 590 203
Succes!!