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2. Worksheet - Wikipedia

   en.wikipedia.org/wiki/Worksheet

   No other materials are needed. In education, a worksheet may have questions for students and places to record answers. In accounting, a worksheet is, or was, a sheet of ruled paper with rows and columns on which an accountant could record information or perform calculations. These are often called columnar pads, and typically green-tinted.

3. Word (group theory) - Wikipedia

   en.wikipedia.org/wiki/Word_(group_theory)

   For example, if x, y and z are elements of a group G, then xy, z −1 xzz and y −1 zxx −1 yz −1 are words in the set {x, y, z}. Two different words may evaluate to the same value in G, [1] or even in every group. [2] Words play an important role in the theory of free groups and presentations, and are central objects of study in ...

4. 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.

5. Course Hero - Wikipedia

   en.wikipedia.org/wiki/Course_Hero

   The crowdsourced learning platform contains practice problems, study guides, infographics, class notes, step-by-step explanations, essays, lab reports, videos, user-submitted questions paired with answers from tutors, and original materials created and uploaded by educators. Users either buy a subscription or upload original documents to ...

6. List of mnemonics - Wikipedia

   en.wikipedia.org/wiki/List_of_mnemonics

   Advice, Practice, Licence etc. (those with c) are nouns and Advise, Practise, License etc. are verbs. One way of remembering this is that the word 'noun' comes before the word 'verb' in the dictionary; likewise 'c' comes before 's', so the nouns are 'practice, licence, advice' and the verbs are 'practise, license, advise'. [27] Here or Hear

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8. Word problem (mathematics) - Wikipedia

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

   The set of all well-formed expressions that can be formulated using these operations on elements from a given set of generators X will be called W(X). This set of words contains many expressions that turn out to denote equal values in every lattice. For example, if a is some element of X, then a ∨ 1 = 1 and a ∧ 1 = a.

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