The Calculator CASIO SL 1000 SC grey can solve simple arithmetic problems, which makes it a great choice for both students and businessmen. The basic functions include - root and percent. The model also features financial functions such as vAT calculation. The advantage of this model is its solar power system with a battery backup, which significantly reduces the calculator's energy use. This calculator has a 2row display for 10 digits. Moreover, this model includes a protective case that prevents against scratches. The compact dimensions make the calculator suitable for travelling.