52, 79, 74
Пошаговое объяснение:
30 + 22 = 30+(20 + 2) = (30 + 20) + 2 = 52
50 + 29 = 50 + (20 + 9) = (50 + 20) + 9 = 79
40 + 34 = 40 + (30 + 4) = (40 + 30) + 4 = 74
50 + 16 = 50 + (10 + 6) = (50 + 10) + 6 = 66
50 + 47 = 50 + (40 + 7) = (50 + 40) + 7 = 97
60 + 12 = 60 + (10 + 2) = (60 + 10) + 2 = 72
Можно лучший?
30 + 22 = 30 + (20 + 2) = (30 + 20) + 2 = 52
52, 79, 74
Пошаговое объяснение:
30 + 22 = 30+(20 + 2) = (30 + 20) + 2 = 52
50 + 29 = 50 + (20 + 9) = (50 + 20) + 9 = 79
40 + 34 = 40 + (30 + 4) = (40 + 30) + 4 = 74
50 + 16 = 50 + (10 + 6) = (50 + 10) + 6 = 66
50 + 47 = 50 + (40 + 7) = (50 + 40) + 7 = 97
60 + 12 = 60 + (10 + 2) = (60 + 10) + 2 = 72
Можно лучший?
Пошаговое объяснение:
30 + 22 = 30 + (20 + 2) = (30 + 20) + 2 = 52
50 + 29 = 50 + (20 + 9) = (50 + 20) + 9 = 79
40 + 34 = 40 + (30 + 4) = (40 + 30) + 4 = 74
50 + 16 = 50 + (10 + 6) = (50 + 10) + 6 = 66
50 + 47 = 50 + (40 + 7) = (50 + 40) + 7 = 97
60 + 12 = 60 + (10 + 2) = (60 + 10) + 2 = 72