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Mental arithmetic is a book category focused on building the skill of performing calculations in one’s head without calculators or written work. Titles in this genre teach number sense, estimation, and efficient strategies for operations with whole numbers, fractions, decimals, and percentages, often drawing on methods like Vedic math, Trachtenberg, and abacus/soroban techniques. They typically include graded exercises, timed drills, puzzles, and real‑life applications (e.g., money, measurement, and quick decision-making) to improve both speed and accuracy. Aimed at students, contest and exam prep, teachers, and adults interested in brain training, these books range from child-friendly practice and games to advanced speed-math handbooks, all designed to boost confidence and fluency in mental calculation.

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