0
The sum of the first nine odd numbers is 81.
Wiki User
∙ 2014-07-30 10:52:07
Add your answer:
Earn +20 pts
What is the sum of the first three odd numbers?
The first three odd numbers are 1, 3, and 5. Their sum is 1 + 3 + 5 = 9.
Sum first 99 odd numbers?
9801 * The sum of the first two odd numbers (1+3) is 4, or 22 * The sum of the first three odd numbers (1+3+5) is 9, or 32 * The sum of the first four odd numbers (1+3+5+7) is 16, or 42 * ...and so on So the sum of the first 99 odd numbers, using the pattern above, would be 992 or 9801.
What are the first three odd numbers?
the sum of the first three numbers is 1 + 3+5= 9
What are the 9 odd numbers whose sum is 50 from 1 to 50?
The sum of 9 odd numbers must be odd and so cannot be an number.
How do you 9 odd number 50?
You cannot. The sum of 9 odd numbers must be odd.
Why is the sum of 3 odd numbers odd?
6 9 11 23
What is the sum of the first 1500 consecutive odd numbers?
You can work this out by realizing that the sum of the first x odd numbers is equal to x2.Consider the following examples:The first three odd numbers: 1 + 3 + 5 = 9The first five odd numbers: 1 + 3 + 5 + 7 + 9 = 25The first ten odd numbers: 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 = 100In each case, the number of odds you're adding together is the square root of their sum. This means that the first 1500 consecutive odd numbers have a sum of 15002, which equals 2250000, or two and a quarter million.
What are the 9 odd numbers which gives the sum eighty?
Not possible ! If you add an odd number of odd numbers together, the result will ALWAYS be odd !
What is the sum of the first 5 positive odd numbers?
1+3+5+7+9=25
What is the sum of the first 2000 consecutive odd numbers?
Answer is 4000000: The sum of the first N odd numbers is N^2. Look at 1,3,5 for example. There are 3 numbers and the sum is 9 which is 3^2. Add 7 and the sum is 16 which is 4^2. So the of the first 2000 consecutive odd numbers is 2000^2 Note 2000 is 2(10^3). When we square that it is 4x10^6=4000000
The sum of 3 consecutive odd numbers is 27 What are the numbers?
7, 9 & 11.
The sum of two consecutive odd numbers is 20 What are the two numbers?
9 and 11
