Răspuns :
10000 - ( 2000 - 1000 + 1000 ) =
10000 - ( 1000 + 1000 ) =
10000 - 2000
= 8000
sau
1000 - ( 2000 - 1000 + 1000 ) =
1000 - 2000 =
= 8000
10000 - ( 2000 - 1000 + 1000 ) =
10000 - ( 1000 + 1000 ) =
10000 - 2000
= 8000
sau
1000 - ( 2000 - 1000 + 1000 ) =
1000 - 2000 =
= 8000