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  2. Word problem (mathematics education) - Wikipedia

    en.wikipedia.org/wiki/Word_problem_(mathematics...

    Word problem from the Līlāvatī (12th century), with its English translation and solution. In science education, a word problem is a mathematical exercise (such as in a textbook, worksheet, or exam) where significant background information on the problem is presented in ordinary language rather than in mathematical notation.

  3. Third grade - Wikipedia

    en.wikipedia.org/wiki/Third_grade

    The specific problem is: ... Third grade (also 3rd Grade or Grade 3) ... place value to thousands or ten thousands, and estimation.

  4. Word problem (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Word_problem_(mathematics)

    The proof is difficult to follow but marks a turning point in the word problem for groups. [3]: 342 1955 (): Pyotr Novikov gives the first published proof that the word problem for groups is unsolvable, using Turing's cancellation semigroup result. [17] [3]: 354 The proof contains a "Principal Lemma" equivalent to Britton's Lemma.

  5. Positional notation - Wikipedia

    en.wikipedia.org/wiki/Positional_notation

    This system can be used to solve the balance problem, which requires finding a minimal set of known counter-weights to determine an unknown weight. Weights of 1, 3, 9, ..., 3 n known units can be used to determine any unknown weight up to 1 + 3 + ... + 3 n units. A weight can be used on either side of the balance or not at all.

  6. Investigations in Numbers, Data, and Space - Wikipedia

    en.wikipedia.org/wiki/Investigations_in_Numbers...

    Investigations was developed between 1990 and 1998. It was just one of a number of reform mathematics curricula initially funded by a National Science Foundation grant. The goals of the project raised opposition to the curriculum from critics (both parents and mathematics teachers) who objected to the emphasis on conceptual learning instead of instruction in more recognized specific methods ...

  7. The 9 Best Grocery Items for Weight Loss, According to ... - AOL

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    3. Olive Oil. Pairing well with just about anything, olive oil offers a slew of health benefits. One tablespoon contains 14 grams of healthy fat—including mono- and polyunsaturated types, which ...

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