What is the sum of the odd numbers between 10 and 20?

15
From the above solution, the difference of the sum of even numbers and sum of odd numbers between 10 and 20 is 15. So, the correct answer is “Option C”.

What are the odd numbers between 10 to 20?

There are 5 odd numbers between 10 and 20. These include 11,13,15,17, and 19.

What is the sum of the odd numbers between 2 to 20?

Then adding all the odd numbers between 2 and 20 gives the following sum: 3+5+7+9+11+13+15+17+19=99.

What is the sum of the first 10 odd numbers?

100
sum of first 10 odd numbers = n * n = 10 * 10 = 100.

What are the odd numbers from 1 to 10?

The consecutive odd numbers from 1 to 10 are: 1, 3, 5, 7, 9.

What is the sum of first 10 even numbers?

110
Therefore, the first 10 even natural numbers will be 2, 4, 6, 8, 10, 12, 14, 16, 18 and 20. Hence, the required sum of the first 10 even natural numbers is 110.

What is the sum of first 10 odd numbers?

How do you add odd numbers?

The total of any set of sequential odd numbers beginning with 1 is always equal to the square of the number of digits, added together. If 1,3,5,7,9,11,…, (2n-1) are the odd numbers, then; Sum of first odd number = 1. Sum of first two odd numbers = 1 + 3 = 4 (4 = 2 x 2).

How do you find the sum of odd integers?

Define a formula to find the sum of odd integers. If the problems asks you to find the sum of only the odd integers, you’ll need to find n{\\displaystyle n} first. To find n{\\displaystyle n}, add 1 to the highest number of the sequence. Then use it in this formula: sum = (n{\\displaystyle n}+1)∗(n{\\displaystyle n}+1)/4.

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

The sum of the first 100 odd numbers is 10,000. There are 100 odd numbers between 1 and 199, and each pair from the start and end of the sequence (e.g. 1 and 199, 3 and 197, etc.) adds up to 200.

What are four consecutive odd integers?

Odd consecutive integers are odd integers that follow each other. They have a difference of 2 between every two numbers. If n is an odd integer, then n, n+2, n+4 and n+6 will be odd consecutive integers.

What is the sum of all even numbers?

The sum of two numbers refers to the result of adding them together. An even number is defined as any number that has 2 as a factor. For example, 2, 4, 6, 8 and 10 are all even numbers. Any number without 2 as a factor is odd, like 3, 5, 7 and 9.