Hey there! Let talk about numbers,, mine is 7,how about your?
Why should we talk about numbers. My favorite number is 4
Yeah ,cos numbers is applies to various aspects of our lives ,like team sports, the number, often referred to as the uniform number, squad number, jersey number, shirt number, sweater number,etc  
I see. Do you know anything about roman numerals 
Yeah! Numbers in this system are represented by combinations of letters .its a Latin alphabet
I see. is there any other counting system other than Arabic and roman numerals. 
We also have the Chinese numerals,a numbering system like that of the Roman and Arabic ones