Răspuns :
Salut,
7 + 7 ÷ 7 × 7 - (3 × 30 - 3 × 10) ÷ 10 =
7 + 7 ÷ 7 × 7 - (90 - 3 × 10) ÷ 10 =
7 + 7 ÷ 7 × 7 - (90 - 30) ÷ 10 =
7 + 7 ÷ 7 × 7 - 60 ÷ 10 =
7 + 1 × 7 - 60 ÷ 10 =
7 + 7 - 60 ÷ 10 =
7 + 7 - 6 =
14 - 6 =
8
Salut,
7 + 7 ÷ 7 × 7 - (3 × 30 - 3 × 10) ÷ 10 =
7 + 7 ÷ 7 × 7 - (90 - 3 × 10) ÷ 10 =
7 + 7 ÷ 7 × 7 - (90 - 30) ÷ 10 =
7 + 7 ÷ 7 × 7 - 60 ÷ 10 =
7 + 1 × 7 - 60 ÷ 10 =
7 + 7 - 60 ÷ 10 =
7 + 7 - 6 =
14 - 6 =
8