• OH-450L Emulates Casio SL-450L • OH-55 Emulates Casio fx-55 • OH-65 Emulates Casio fx-65

• OH-260 Emulates Casio fx-260 solar • OH-280 Emulates Casio fx-280 • OH-115W Emulates Casio fx-115W

OH-450L Emulates Casio SL-450L

OH-260 Emulates Casio fx-260 solar

This four-function calculator displays the current operation sign & has a floating negative sign in its eight-digit display. With change sign, square root, percent and memory keys, this calculator is an fine choice for primary mathematics. Includes carrying case and instructions . Product No. 230 $45.00

The Educator OH-260 emulates the Casio fx-260 solar student calculator with 144 built-in mathematical functions; fraction functions; accurate 10 digit, 10+2 display; backspace key fixes entry mistakes; basic scientific, exponential & trigonometric functions; single variable statistical calculations; M-D-A-S order of operations; polar-rectangular conversions; instantly converts between mixed and proper fractions and fractions to their decimal equivalents. Product No. 238 $95.00

OH-55 Emulates Casio fx-55

This calculator has true fraction display with numerator over denominator. Features include simplification key to reduce fractions, integer division, decimal to fraction, algebraic logic for correct order of operations, backspace, reciprocals, and 18 levels of parentheses. Other functions included percent, square root, pi, x squared, y to the x, exchange values and exchange value with memory. Product No. 232 $85.00

OH-280 Emulates Casio fx-280

Features of this calculator include fractions, basic trigonometric and scientific functions, single variable statistics, standard deviation, permutation combination, random number generator, constant indicator, backspace, algebraic logic, 18 levels of parentheses, plus functions like: percent, square root, pi, x, powers of 10, exchange values, and exchange value with memory performed with a single key. Product No. 235 $95.00

OH-65 Emulates Casio fx-65

OH-115W Emulates Casio fx-115W

This calculator has true fraction display that shows numerator over denominator. Include trigonometric and scientific functions, random number generator, two programmable constant functions to simplify repetitive calculations, pi displayed symbolically in fractions, simplification key to reduce fractions, backspace, algebraic logic, plus: percent, square root, pi, x, powers of 10, exchange values, exchange value with memory, and more. Product No. 234 $95.00

Features of this calculator include a large array of advanced functions from calculating fractions to Boolean logic operators to statistical standard deviation. Its color-coordinated keyboard and large display make even complex calculator demonstrations more interesting, accessible and effective. Product No. 237 $95.00