DESC: This set of 10 basic calculators is the perfect addition to any classroom. Each solar-powered 3.25" x 4.6" primary calculator has four basic functions, 3-key memory, +/–, percent, square root keys, floating decimal, constant functions, 8-digit LCD display and protective plastic sliding case. Negative sign displays to left of entry. Color-coded to match Big Digit Overhead Calc-U-Vue (LER 0050).