What is the sum of even numbers from 153 to 165? Here we will show you step-by-step how to calculate the sum of even numbers from 153 to 165.
Step 1) We start by finding the first (F) and last (L) even numbers from 153 to 165. It is easy to do that by simply looking at the numbers. The first even number is 154, and the last even number is 164.
F = 154
L = 164
Step 2) Next, we calculate the total even numbers (T) there are from 153 to 165, using a formula. Here is the formula and the math:
T = (L - F + 2) ÷ 2
T = (164 - 154 + 2) ÷ 2
T = 12 ÷ 2
T = 6
Step 3) Finally, we use the information from Step 1 and Step 2, and another formula, to calculate the sum of even numbers from 153 to 165, like this:
Sum = (T ÷ 2) × (2 × F + (2 × (T - 1))
Sum = (6 ÷ 2) × (2 × 154 + (2 × (6 - 1))
Sum = 3 × (308 + 10)
Sum = 3 × 318
Sum = 954
Sum of even numbers from 153 to 165 = 954
Sum of Even Numbers Calculator
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