adding machine

noun

1. a machine capable of adding numbers and sometimes capable of performing the other arithmetic functions of subtraction, multiplication, and division: such machines are now obsolescent, having been replaced in most applications by electronic calculators.

adding machine

noun

1. a mechanical device, operated manually or electrically, for adding and often subtracting, multiplying, and dividing

Word History and Origins

Origin of adding machine¹

An Americanism dating back to 1870–75

Example Sentences

For much of the 20th century, financial modeling meant working with a rudimentary, laborious set of tools: eight-column ledger paper, mechanical adding machines or hand-held calculators.

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“It’s kind of the Stone Age here,” said Tom, pointing to a dusty hand-cranked adding machine on the counter.

Read more on Los Angeles Times

One person asked for the entire recount of a contested state Supreme Court race from 2020 — a very long paper record resembling an adding machine tape that took days for one employee to copy.

Read more on Washington Post

In fact, the prisoners detailed to the operation did little but operate adding machines, performing meaningless mathematical operations, and other useless tasks.

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He made ends meet by repairing typewriters and adding machines.

Read more on Washington Post