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  2. Subtraction - Wikipedia

    en.wikipedia.org/wiki/Subtraction

    Subtraction is an operation that represents removal of objects from a collection. [1] For example, in the adjacent picture, there are 5 − 2 peaches—meaning 5 peaches with 2 taken away, resulting in a total of 3 peaches. Therefore, the difference of 5 and 2 is 3; that is, 5 − 2 = 3.

  3. 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 ...

  4. Mathematics - Wikipedia

    en.wikipedia.org/wiki/Mathematics

    It is in Babylonian mathematics that elementary arithmetic (addition, subtraction, multiplication, and division) first appear in the archaeological record. The Babylonians also possessed a place-value system and used a sexagesimal numeral system which is still in use today for measuring angles and time.

  5. Math Rabbit - Wikipedia

    en.wikipedia.org/wiki/Math_Rabbit

    The game takes place in a circus and teaches addition, subtraction, and counting in four different games, each of which with multiple difficulty settings. [1] [2] The game is for ages 4–8. [3] The four games are: Clown's Counting Games - the player is required to count with a number as a guide to pitch the tone of the musical instrument.

  6. Pentagon Fails 7th Audit in a Row but Hopes To Pass by 2028 - AOL

    www.aol.com/news/pentagon-fails-7th-audit-row...

    Congress required all federal agencies to submit annual financial reports in 1990. The Pentagon finally got around to complying in 2018, and it still hasn't passed an audit.

  7. EU Chips Act 2.0 should include legacy chips, says industry ...

    www.aol.com/news/eu-chips-act-2-0-102740385.html

    The European Commission should expand plans to strengthen its computer chip sector to include "foundational and legacy" semiconductors, where much of the region's strengths lie, the head of ...

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