
Example: Using appropriate formula and find the value of 208*192. Solution: We can change the given problem like (200+8)(2008), This is in the form of (a+b)(ab), using this formula we can find the value, (200+8)(2008) = (200)^{2}  (8)^{2} = 40,000  64 = 39,936
Directions: Solve the following problems using appropriate formula. Also write at least ten examples of your own. 