52+54+56 = 162
The sum of the numbers between 51 and 150 is equal to 10050 - or 50 x 201 - as there are 50 lots of 201 in the sum.
The sum of the first 10 counting numbers (1-10) is 51.
Sum of 1st n even numbers: count*average = n * (2 + 2*n)/2 = n * (n+1) Sum = 50 * (2+100)/2 = 50*51 = 2550
I believe here are 51 such numbers.
16 and 35
The odd numbers between 14 and 20 are 15, 17, and 19. To find their sum, you add them together: 15 + 17 + 19 = 51. Therefore, the sum of the odd numbers between 14 and 20 is 51.
The sum of the numbers between 51 and 150 is equal to 10050 - or 50 x 201 - as there are 50 lots of 201 in the sum.
51
The sum of the first 10 counting numbers (1-10) is 51.
50 and 52 are the even numbers in this range, the odd numbers will be all the others, which is just the number 51.
A sum has to include two or more numbers in the calculation.
Sum of 1st n even numbers: count*average = n * (2 + 2*n)/2 = n * (n+1) Sum = 50 * (2+100)/2 = 50*51 = 2550
The odd composite numbers between 50 and 60 are 51, 55, and 57. Because all the primes are odd except for 2 and adding two odd numbers will result in an even number, one of the two prime numbers must be 2, which when added to an odd number will result in an odd number. So, we subtract 2 from each of these numbers and check whether it is prime. 51 - 2 = 49, which is not prime. 55 - 2 = 53, which is prime. 57 - 2 = 55, which is not prime. Thus, the number is 55, which can be written as 2 + 53.
51 + 57 = 108
I believe here are 51 such numbers.
16 and 35
The sum of the four given numbers is -13.