# Sum Of Squares

Using Algebra to Find the Sums of Sequences Algebra can help you add a series of numbers (the sum of sequences) more quickly than you would be able to with straight addition. Adding integers, squares, cubes, and terms in an arithmetic or geometric sequence is simple with these algebraic formulas:

*228*

*18*

Foxy paper towels and toilet paper has conducted a cause marketing campaign in Italy since 2002 for UNICEF that is world-class. Every year, in schools, in family homes, in old people’s homes, thousands of people, make Pigotte (rag dolls) which are offered for adoption in more than 600 squares throughout Italy for 20 Euros each. The sum covers the cost of buying a lifesaving kit with the vaccines, vitamins, etc., critical to childhood survival. Each adopted Pigotta = a saved life.

*3*

*1*