This dual-powered, basic calculator has four functions, 3-key memory, percent and square root keys, floating decimal, constant functions, and 8-digit LCD display. Includes protective sliding case. Measures 3.25" x 5". Grades K+ This dual-powered, basic calculator has four functions, 3-key memory, percent and square root keys, floating decimal, constant functions, and 8-digit LCD display. Includes protective sliding case. Measures 3.25" x 5". Grades K+