Рамка 4-постовая Schneider Electric Unica Хамелеон MGU6.008.571

+ 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 = 55. Problem: Find the sum of the first 10 whole numbers. Key Concept: Whole numbers are non-negative integers (0, 1, 2, 3, ...). Solution: The first 10 whole numbers are: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 To find their sum, we add them together: Sum = 0 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 We can use the formula for the sum of an arithmetic series, or simply pair numbers: (0 + 9) + (1 + 8) + (2 + 7) + (3 + 6) + (4 + 5) = 9 + 9 + 9 + 9 + 9 = 5 * 9 = 45 Alternatively, using the formula for the sum of the first 'n' non-negative integers (starting from 0): Sum = n * (n - 1) / 2 Here, we want the first 10 whole numbers, which means n = 10 (from 0 to 9). Sum = 10 * (10 - 1) / 2 Sum = 10 * 9 / 2 Sum = 90 / 2 Sum = 45 The sum of the first 10 whole numbers is 45. Final Answer: The final answer is $45}$.