Arithmetic Tutorials
by
Douglas W. Jones

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Remember the 503,500 who have died of COVID 19 in the US 
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and the 5,415 who have died in Iowa 
These tutorials are characterized by an interest in doing arithmetic on machines with just binary add, subtract, logical and shift operators, making no use of special hardware support for such complex operations as BCD arithmetic or multiplication and division. While some of these techniques are old, they remain relevant today.