This is the math book my mom found at the flea market. I bought them for her but they wound up being for me so she bought the radio for me. It is from 1877. It is 130 years old.
I love the tables and converstion charts. Everyday I find something new. And ironically, I absolutely suck at math, but after reviewing the basic section I was able to balance the checkbook today without a calculator. The rules and how the math is explained makes more sense then what I learned in school.
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Oh, I love old textbooks. This one, however, gives greater meaning to "old." This is awesome!
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