Răspuns :
10 + ( 1 + 10 ) - ( 10 + 10 ) =
10 + 11 - 20 =
21 - 20 = 1
❀ Salutare! ❀
❁ Rezolvare
10 + ( 10 ÷ 10 + 10 ) - ( 10 × 1 + 10 ) =
10 + ( 1 + 10 ) - ( 10 × 1 + 10 ) =
10 + 11 - ( 10 × 1 + 10 ) =
10 + 11 - ( 10 + 10 ) =
10 + 11 - 20 =
21 - 20 =
1
✤ Răspuns
1
❀ Succes! ❀