What is the sum of odd numbers from 60 to 132? Here we will show you step-by-step how to calculate the sum of odd numbers from 60 to 132.
Step 1) We start by finding the first (F) and last (L) odd numbers from 60 to 132. It is easy to do that by simply looking at the numbers. The first odd number is 61, and the last odd number is 131.
F = 61
L = 131
Step 2) Next, we calculate the total odd numbers (T) there are from 60 to 132, using a formula. Here is the formula and the math:
T = (L - F + 2) ÷ 2
T = (131 - 61 + 2) ÷ 2
T = 72 ÷ 2
T = 36
Step 3) Finally, we use the information from Step 1 and Step 2, and another formula, to calculate the sum of odd numbers from 60 to 132, like this:
Sum = (T ÷ 2) × (2 × F + (2 × (T - 1))
Sum = (36 ÷ 2) × (2 × 61 + (2 × (36 - 1))
Sum = 18 × (122 + 70)
Sum = 18 × 192
Sum = 3456
Sum of odd numbers from 60 to 132 = 3456
Sum of Odd Numbers Calculator
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