The sum of the first n odd numbers is n squared. 25 x 25 = 625
The sum of the first 5 numbers is 15. 1+2+3+4+5=15
The first five prime numbers are 2,3,5,7,11. The sum of the first five prime numbers is 28.The sum is: 2+3+5+7+11 = 28
The first three odd numbers are 1, 3, and 5. Their sum is 1 + 3 + 5 = 9.
Because the sum of the first N odd numbers is always N squared. Look at 5, 7, and 9. This is 5+7+9 = (1 + 3 + 5 + 7 + 9)-(1+3)= 25-4 =5^2 - 2^2
The sum of the first n odd numbers is n squared. 25 x 25 = 625
The sum of the first 5 numbers is 15. 1+2+3+4+5=15
The sum of the first two prime numbers is 5.
The first five prime numbers are 2,3,5,7,11. The sum of the first five prime numbers is 28.The sum is: 2+3+5+7+11 = 28
The sum of the first 100 even numbers is 10,100
The first three odd numbers are 1, 3, and 5. Their sum is 1 + 3 + 5 = 9.
Because the sum of the first N odd numbers is always N squared. Look at 5, 7, and 9. This is 5+7+9 = (1 + 3 + 5 + 7 + 9)-(1+3)= 25-4 =5^2 - 2^2
it is 5
Those numbers would be 13 and 8. 13 squared + 8 squared This is equal to: 169 + 64 which equals 233 And finally, 13 - 8 equals 5.
The sum of all the first 100 even numbers is 10,100.
If that's the first five, the sum is 28.
for squaring sums, do they addition first and then square. ex: (3+5)squared = (8)squared or 64