Ключевые слова: abstract, algebra, arithmetic, backdrop, background, black, blue, calculation, count, design, digit, digital, education, eight, fabric, figure, five, four, illustration, infinity, letter, material, math, mathematical, mathematics, motif, nine, number, numeral, one, pattern, repeat, school, seamless, seven, sheet, six, statistics, symbol, text, textile, texture, three, tile, two, wallpaper, white, wrap, zero,