# Quick Answer: What Is The Sum Of First 28 Odd Natural Numbers?

## What is the sum of odd numbers from 1 to 100?

So we can do the following: Sum of odd consecutive integers from 1 to 100 = (Sum of all consecutive integers from 1 to 100) – (Sum of even consecutive integers from 1 to 100).

Sum of odds = (100 x 101/2) – [2 x (50 x 51/2)] = 5050 – 2550 = 2500..

## What is the sum of odd natural numbers?

An efficient solution is to use direct formula. To find the sum of first n odd numbers we can apply odd number theorem, it states that the sum of first n odd numbers is equal to the square of n. if we apply odd number theorem: sum of first 10 odd numbers = n * n = 10 * 10 = 100.

## What is the sum of first 7 odd natural numbers?

Answer. sum of odd natural numbers – 1+3+5+7+9+11+13 gives you 49 .

## What is the sum of all the odd natural numbers from 1 to 29?

The number series 1, 3, 5, 7, 9, . . . . , 57. Therefore, 841 is the sum of first 29 odd numbers.

## What is the sum of first 20 odd natural numbers?

Answer: The sum of the first 20 odd natural numbers is 400. are known as counting numbers.

## What is the sum of first 25 odd natural numbers?

The number series 1, 3, 5, 7, 9, . . . . , 49. Therefore, 625 is the sum of first 25 odd numbers.

## What is the sum of first 25 even numbers?

The number series 2, 4, 6, 8, 10, 12, . . . . , 50. Therefore, 650 is the sum of first 25 even numbers.

## What is the sum of first 20 even numbers?

The number series 2, 4, 6, 8, 10, 12, . . . . , 40. Therefore, 420 is the sum of first 20 even numbers.

## What is the sum of first 50 odd numbers?

The number series 1, 3, 5, 7, 9, . . . . , 99. Therefore, 2500 is the sum of first 50 odd numbers.