Question

Fill in the blanks:
________developed a machine for
addition and subtraction.
​

Answer 1

Answer:

Blaise pascal developed a machine for addition and subtraction.

Explanation:

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Answer 2

Answer:

Blaise Pascal

The calculating machine “pascaline” was invented in 1642.

In 1642, Blaise Pascal invented the “pascaline,” a machine capable of addition, subtraction, multiplication, and division. In total, about twenty copies were made.