All calculators come with a leatherette pouch and a reinforced protective case.
Features include simplification key to reduce fraction, integer division, decimal to fraction, algebraic logic for correct order of operation, backspace, reciprocals, and 18 levels of parentheses. Other functions include percent, square root, pi, x squared, x to the y power, inverse of x, exchange value, and exchange memory keys. Visually Perfect Algebraic Method for correct display of calculations. All calculators come with a leatherette pouch and a reinforced protective case. It features single variable statistics, one-button conversion between fractions and decimals, GCF and LCM functions.