The numbers between 40 and 60 that are divisible by 9 are 45 and 54. 45/9=5 and 54/9=6. The sum of 45 and 54 is 99.
The sum of two numbers between 20-40 is 58. The difference is 12
The only one is 36.
The sum of the first 40 odd numbers is 1,600.
23 and 32
There are 5 numbers between 17 and 61 that are divisible by 8. They are 24, 32, 40, 48, and 56.
No number between 20 and 40 is divisible by all 4 numbers. The smallest number divisible by all 4 of those numbers is: 56
The sum of two numbers between 20-40 is 58. The difference is 12
31 is the only prime number between 30 and 40
120
24, 30 and 36.
None is divisible by all those.
68
The only one is 36.
The sum of the first 40 whole numbers is 780.
The prime numbers between 40 and 50 are 41, 43, 47. So their sum is 131.
The prime numbers between 40 and 60 are 41, 43, 47, 53 and 59. These sum to 243.
The sum of the first 40 odd numbers is 1,600.