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  2. Mental calculation - Wikipedia

    en.wikipedia.org/wiki/Mental_calculation

    Likewise, 14 is a multiple of 2, so the product should be even. Furthermore, any number which is a multiple of both 5 and 2 is necessarily a multiple of 10, and in the decimal system would end with a 0. The correct answer is 210. It is a multiple of 10, 7 (the other prime factor of 14) and 3 (the other prime factor of 15).

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  4. Spreadsheet - Wikipedia

    en.wikipedia.org/wiki/Spreadsheet

    LANPAR, available in 1969, [10] was the first electronic spreadsheet on mainframe and time sharing computers. LANPAR was an acronym: LANguage for Programming Arrays at Random. [10] VisiCalc (1979) was the first electronic spreadsheet on a microcomputer, [11] and it helped turn the Apple II into a popular and widely used personal computer.

  5. Numeric precision in Microsoft Excel - Wikipedia

    en.wikipedia.org/wiki/Numeric_precision_in...

    Excel maintains 15 figures in its numbers, but they are not always accurate; mathematically, the bottom line should be the same as the top line, in 'fp-math' the step '1 + 1/9000' leads to a rounding up as the first bit of the 14 bit tail '10111000110010' of the mantissa falling off the table when adding 1 is a '1', this up-rounding is not undone when subtracting the 1 again, since there is no ...

  6. Spaced repetition - Wikipedia

    en.wikipedia.org/wiki/Spaced_repetition

    Once those tests were completed, participants came back one week later to complete a final retention test. The researchers concluded that it did not matter what kind of repetition schedule was used. The biggest contribution to effective long-term learning was the spacing between the repeated tests (absolute spacing).

  7. Worksheet - Wikipedia

    en.wikipedia.org/wiki/Worksheet

    It can be a printed page that a child completes with a writing instrument. 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.

  8. Heisman watch: Who are the Heisman Trophy frontrunners after ...

    www.aol.com/heisman-watch-heisman-trophy...

    The 2024 Heisman Trophy race is down to just a few contenders as the college football regular season comes to close.. With only two weeks remaining in the regular season, the top competitors for ...

  9. Microsoft Excel Collegiate Challenge - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Excel_Collegiate...

    The MECC started in 2022 and combines elements of the Financial Modeling World Cup and the Microsoft Excel World Championship, targeting college students. Contestants solve problems, in the form of case studies, using the spreadsheet software.

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