A brass numeral four pictured on a paper containing other numbers and mathematical operations.

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Size: 5100px × 3400px
Location: San Diego California
Photo credit: © CJ Middendorf / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 4, arithmetic, brass, calculate, calculating, calculation, computation, count, counting, digit, handwritten, math, mathematical, mathematics, maths, multiplication, nostalgia, number, numbers, numeral, penmanship, square, written