Задание
Выбериправильный алгоритм сложения.
\(17 + 20 =\)
- \(=(8 + 10) \times 2 + 1 = (4 + 5) \times 2 \times 2 + 1 = (4 + 5) \times 2 \times 2 + 1 = (1 + 1) \times 2 \times 2 \times 2 \times 2 + 1\)
- \(=(9 + 10) \times 2 + 1 = ((4 + 5) \times 2 + 1) \times 2 + 1 = (((1 + 1) \times 2 \times 2 + 1) \times 2 + 1) \times 2 + 1 = (((2 + 2) \times 2 + 1) \times 2 + 1) \times 2 + 1\)
- \(=(8 + 10) \times 2 + 1 = ((2 + 2) \times 2 + 1) \times 2 \times 2 + 1 = (4 + 5) \times 2 \times 2 + 1 = ((1 + 1) \times 2 \times 2 + 1) \times 2 \times 2 + 1\)
- \(=(8 + 10) \times 2 + 1 = (4 + 5) \times 2 \times 2 + 1 = ((4 + 5) \times 2 + 1) \times 2 + 1 = (((1 + 1) \times 2 \times 2 + 1) \times 2 + 1) \times 2 + 1\)