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An adding machine is a mechanical or electromechanical calculator which could perform addition and subtraction.
Addition and subtraction are reverse operations.
The answer will depend on how the information was entered - in pounds (or ponds) or in pennies, what the operations were - addition/subtraction or -multiplication/division).The answer will depend on how the information was entered - in pounds (or ponds) or in pennies, what the operations were - addition/subtraction or -multiplication/division).The answer will depend on how the information was entered - in pounds (or ponds) or in pennies, what the operations were - addition/subtraction or -multiplication/division).The answer will depend on how the information was entered - in pounds (or ponds) or in pennies, what the operations were - addition/subtraction or -multiplication/division).
You may be referring to the Curta, the small, hand-cranked mechanical calculator introduced by Curt Herzstark in 1948. It can be used to perform addition, subtraction, multiplication, division, square roots and other operations. It was considered the most accurate calculator until the introduction of the electronic ones in the early 1970s.
No.
Do (multiplication/division) before you do (addition/subtraction).
Inverse Operations: Divison undoes multiplication. Addition undoes subtraction. Subtraction undoes addition. Multiplication undoes division.
Inverse means opposite. What undoes subtraction? Addition undoes subtraction!
It was the first calculator that could perform all four arithmetic operations: addition, subtraction, multiplication and division.
Binary arithmetic operations.
Addition, subtraction and multiplication.
Operations