Вычисли удобным способом.
15 + 28 + 7
23 + 41 + 7
42 + 36 + 8
35 + 2 + 18
27 + 3 + 54
84 + 6 + 10
15 + 28 + 7 = (15 + 28) + 7 = 43 + 7 = 50
23 + 41 + 7 = (23 + 7) + 41 = 30 + 41 = 71
42 + 36 + 8 = (42 + 8) + 36 = 50 + 36 = 86
35 + 2 + 18 = 35 + (2 + 18) = 35 + 20 = 55
27 + 3 + 54 = (27 + 3) + 54 = 30 + 54 = 84
84 + 6 + 10 = (84 + 6) + 10 = 90 + 10 = 100