**1. **
Write a program to print number from 1 to 10. *solution*

**2. **
Write a program to calculate the sum of first 10 natural number. *solution*

**3. **
Write a program to find the factorial value of any number entered through the keyboard. *solution*

**4. **
Two numbers are entered through the keyboard. Write a program to find the value of one number raised to the power of another. *solution*

**5. **
Write a program to reveres any given integer number. *solution*

**6. **
Write a program to sum of digits of given integer number. *solution*

**7. **
Write a program to check given number is prime or not. *solution*

**8. **
Write a program to calculate HCF of Two given number. *solution*

**9. **
Write a program to enter the numbers till the user wants and at the end it should display the count of positive, negative and zeros entered.
*solution*

**10. **
Write a program to enter the numbers till the user wants and at the end it should display the maximum and minimum number entered. *solution*

**11. **
Write a program to print out all Armstrong numbers between 1 and 500. If sum of cubes of each digit of the number is equal to the number itself, then the number is called an Armstrong number.

For example, 153 = ( 1 * 1 * 1 ) + ( 5 * 5 * 5 ) + ( 3 * 3 * 3 )
*solution*

**12. **
Write a program to print Fibonacci series of n terms where n is input by user :
0 1 1 2 3 5 8 13 24 ..... *solution *

**13. **
Write a program to calculate the sum of following series where n is input by user.

1 + 1/2 + 1/3 + 1/4 + 1/5 +…………1/n *solution*

**14. **
Compute the natural logarithm of 2, by adding up to n terms in the series

1 - 1/2 + 1/3 - 1/4 + 1/5 -... 1/n

where n is a positive integer and input by user. *solution*