I need materials for the exam

Hi, I'm 15 years old and I'm starting 10th grade. I'd like to find some good books, but I simply don't have the money for all these books. Some guy said they cost around $300-500, but if you include delivery to my home, it would cost me about +$300-400. If you have at least one book from the list below, I'd be grateful if you could send me a PDF version so I could print everything out and make a book for myself.

Math:

Yellow Chart I+A, II+B, III (Chart Institute / Suken Shuppan)

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Physics:

Butsuri no Essence - Mechanics/Waves (Kiyotoshi Hamajima)

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Butsuri no Essence - Heat/E&M/Atomic (Kiyotoshi Hamajima)

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Ryoumon no Kaze (Kiyotoshi Hamajima)

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Chemistry:

Uchuuichi Wakariyasui Koukou Kagaku - Theoretical, Inorganic, and Organic (Yoshiki Funato)

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Toshin Kagaku / Kagaku Kiso Ichimon Ittou (Kensaku Hashizume)

I know I'm asking a lot, but please understand that I can't work part-time, my parents tell me it's better to study, and if I ask for these books, they say that it's expensive and that I don't know Japanese, and they advise me to find free alternatives (you can write to me about this too, I'll be glad of any information).