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Casio FX-220 Plus 181 functions 2-line display combination, permutation, made in Japan - YouTube
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User manual Casio FX-220 Plus (English - 52 pages)
Casio FX-220 Plus 181 functions 2-line display combination, permutation, made in Japan - YouTube
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CASIO FX-220 PLUS calcolatrice scientifica - 181 funzioni, display a 2 linee : Amazon.se: Kontorsprodukter