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There is 2 ways a Solar-powered calculator is worked by:
Solar power and batteries. In the batteries there is chemical. On the solar powered calculator there is a little solar panel. The calculator needs light to power it up. If there is no light the batteries would be it's backup. The numbers are shown by light that the power or batteries and solar power would produce.

sna po makatulong..
1 3 1
@dionSY tingin nyo po ba chemical to light? Or chemical to electrical to light? Sorry po ah kasi po nog sure din
@VIOLAGOPAT siguro poh chemical to electrical to light
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