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Review title: Disappointing
Product review: Rampant with errors. Mislabeled exercises, poorly illustrated diagrams with bad measurements, plain-old typos, and simple calculations done wrong, often several times in a row.The truth is, every math book has errors that can appear obvious when it is a rare anomaly, but when the same mistake is made over and over, it just gets confusing. On pages 50 and 51, for example, the area of a triangle is repeatedly miscalculated by dividing the base in half twice (the base should be divided once), which gives what appears to be a valid (though wrong) answer. The arithmetic is correct, but the key concept is completely botched. This is only one example of many I have spotted.I agree with other reviewers, this is more than simple oversight. For a so-called "self-teaching guide," this is negligent.
