Calculated Steps

I climbed onto the study desk and found a silver pocket calculator resting beside a spiral notebook. Curious about its soft rubber keys, I stepped onto the grid and pressed the heel of my sneaker down onto the number five. With a muted click beneath my sole, a sharp black figure appeared on the pale liquid-crystal screen. I shifted my weight onto the zero, then stepped across to another zero. Five hundred flickered into view in an instant. Spotting the red cancel button at the corner, I tapped it with the toe of my shoe. The screen cleared instantly, ready for another sequence.