What is the sum of even numbers from 31 to 34? Here we will show you step-by-step how to calculate the sum of even numbers from 31 to 34.
Step 1) We start by finding the first (F) and last (L) even numbers from 31 to 34. It is easy to do that by simply looking at the numbers. The first even number is 32, and the last even number is 34.
F = 32
L = 34
Step 2) Next, we calculate the total even numbers (T) there are from 31 to 34, using a formula. Here is the formula and the math:
T = (L - F + 2) ÷ 2
T = (34 - 32 + 2) ÷ 2
T = 4 ÷ 2
T = 2
Step 3) Finally, we use the information from Step 1 and Step 2, and another formula, to calculate the sum of even numbers from 31 to 34, like this:
Sum = (T ÷ 2) × (2 × F + (2 × (T - 1))
Sum = (2 ÷ 2) × (2 × 32 + (2 × (2 - 1))
Sum = 1 × (64 + 2)
Sum = 1 × 66
Sum = 66
Sum of even numbers from 31 to 34 = 66
Sum of Even Numbers Calculator
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