How Can I Create Simple Income Saving Calculator In Excel?

I want to create simple income saving calculator which tells me how much i earn in 6 months,10 Months and annualy in excel for practice...
in short it do a total my income of 6 months 10 months And 12 months and tell me the total of it..
For Example My Monthly Salary Is 1000 Rs
How much i earn in
6 Months?
10 Months?
12 Months?
Please Click On Link To See Example of Calculator I want to creat
http://imageshack.us/scaled/landing/507/ki74.jpg