Partial-Sums Addition Algorithm http://www.dallassd.com/resources/parent%20Resources/PartialSums.htm
Partial-Differences Subtraction Algorithm http://www.dallassd.com/resources/parent%20Resources/PartialDifferences.htm
Partial-Products Multiplication Algorithm http://www.dallassd.com/Resources/Parent%20Resources/PartialProducts.htm
Lattice Multiplication Algorithm http://dallassd.com/Resources/Parent%20Resources/Lattice.htm
Partial-Quotients Algorithm http://dallassd.com/Resources/Parent%20Resources/DivisionSubtmethod.htm