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What is the sum of the first 102 counting numbers?
If you want to sum up numbers 1 to N, you can do it this way. Sum = (N+1)*(N/2).The reason this works: say you want to sum up 1 through 10. You have 10+1, 9+2, ..., 6+5. Each of these equals 11 [N+1]. You added 11 five times (N/2). Sum of 1 to 102 = (102+1)*(102/2) = 103*51 = 5253. You can check it by summing up the numbers with a spreadsheet.
What square numbers have a sum of 125?
102 + 52 = 125
If The sum of two consecutive even whole numbers is 206 what are the two numbers?
The two numbers would be 102 and 104. (102+104=206)
What is the sum of the angles of a polygon with 102 sides?
The sum of the interior angles is (102-2)*180 = 18,000 degrees.The sum of the interior angles is (102-2)*180 = 18,000 degrees.The sum of the interior angles is (102-2)*180 = 18,000 degrees.The sum of the interior angles is (102-2)*180 = 18,000 degrees.
How many pairs of numbers have a sum of 99?
There are infinitely many pairs. For example 23.5 and 75.5 or -3 and 102.
