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All problems are completed.
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All but one of the problems are completed.
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All but two of the problems are completed.
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Several of the problems are not completed.
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90-100% of the steps and solutions have no mathematical errors.
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Almost all (85-89%) of the steps and solutions have no mathematical errors.
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Most (75-84%) of the steps and solutions have no mathematical errors.
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More than 75% of the steps and solutions have mathematical errors.
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Correct terminology and notation are always used, making it easy to understand what was done.
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Correct terminology and notation are usually used, making it fairly easy to understand what was done.
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Correct terminology and notation are used, but it is sometimes not easy to understand what was done.
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There is little use, or a lot of inappropriate use, of terminology and notation.
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