Sharp ELT100AB EL-T100AB Brain Exerciser Calculator 10 Digit LCD Dual Power

Brain Exerciser keeps adult minds active with a simple but challenging math drill.Easily choose the number of math drill problems in increments of 25 50 or 100.When the problems have all been answered the user is given a score based upon speed and accuracy of responses. To add a competitive kick the top three scores are stored in the calculator memory.For everyday necessities Brain Exerciser also provides standard calculator functions with TAX key for easy tax calculations and right shift key for easy corrections.10 digit with punctuation.Dimensions: 3.94 x 5.97 x 1.31.