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Calculate the number 821

NUMBERMANIA: Calculate the number 821 using numbers [1, 4, 4, 1, 25, 795] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 21

The first user who solved this task is Thinh Ddh.

#brainteasers #math #numbermania

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Oscar Montelius

Died 4 Nov 1921 at age 78 (born 9 Sep 1843).Swedish archaeologist who sought to establish foundations for prehistoric chronology, especially that of the Bronze Age in the British Isles and Europe northward to Scandinavia. He developed a relative chronological dating method, known as Swedish seriation. During the early ages of archaeology, accurate records were sometimes kept, sometimes not. His technique dated artifacts based on geography and comparisons from artifacts within a certain geographical area. Montelius' method looked at individual artifacts and placed them using contemporary written records on a timeline specific to the location. Based on the absolute date of that artifact, other artifacts of that geographical region are compared and dated.

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