en.wikipedia.org/wiki/Calculator

The first portable calculators appeared in Japan in 1970, and ... came out in the Autumn of 1971, with four functions and an ...

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Select basic calculators small enough to fit into your pocket, so you can .... (4). Add to Favorites. 12 Digits; Extra-Large liquid crystal display; Quick and easy tax ...

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Grades 6-7: PARCC Compliant Four-function calculators with square root and ... If schools or districts permit students to bring their own hand-held calculators for ...

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Two of the first hand-held calculators, based on Texas Instruments technology. Sanyo ICC-82D 1970. Four-function, amber gas-discharge tubes. One of the first ...

www.reference.com/math/four-function-calculator-6bc7cae6e3704afd

Full Answer. A four-function calculator is the simplest type of pocket calculator and is suitable for basic arithmetic. Calculators with higher functioning abilities are ...

www.walmart.com/browse/office/basic-calculators/1229749_1070964_1479667_9083235

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Results 1 - 24 of 4031 ... Canon LS-82Z Handheld Calculator .... $6.93(4 used & new offers) .... Calculator, KDT Handheld Standard Function Desktop Calculator,12 ...