Arithmetic for human beings | 
so-soGot this book from a family friend, it‘s an arithmetic “anti-textbook” from 1974 which seeks to reteach basic arithmetic in a more practical, common sense sort of way. It covers addition, subtraction, multiplication, division, fractions, negative numbers, estimating measurements, and probability. Would probably be helpful for people who struggled to learn math in school or whose kids are struggling.
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