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  2. List of United States commemorative coins and medals (1970s)

    en.wikipedia.org/wiki/List_of_United_States...

    Coin Obverse design Reverse design Mintage Obverse Reverse 2¢ United States Bicentennial two-cent piece (cancelled) [2] Unknown Unknown None 25¢ United States Bicentennial quarter George Washington: Drummer boy: Circulation: [3] 809,784,016 860,118,839 D. Uncirculated: [4] 3,814,001 (P) (clad) 3,814,001 D (clad) 4,908,319 S (silver) Proof: [5 ...

  3. Currency Act - Wikipedia

    en.wikipedia.org/wiki/Currency_Act

    The currency of the American colonies, 1700–1764: a study in colonial finance and imperial relations. Dissertations in American economic history. New York: Arno Press, 1975. ISBN 0-405-07257-0. Ernst, Joseph Albert. Money and politics in America, 1755–1775; a study in the Currency act of 1764 and the political economy of revolution. Chapel ...

  4. Nova Constellatio - Wikipedia

    en.wikipedia.org/wiki/Nova_Constellatio

    500-Unit Nova Constellatio coin encased in a PCGS coin slab. The Nova Constellatio coins are the first coins struck under the authority of The United States of America. [1] These pattern coins were struck in early 1783, and are known in three silver denominations (1,000-Units, 500-Units, 100-Units), and one copper denomination (5-Units). All ...

  5. Early American currency - Wikipedia

    en.wikipedia.org/wiki/Early_American_currency

    The currency of the American colonies, 1700–1764: a study in colonial finance and imperial relations. Dissertations in American economic history. New York: Arno Press, 1975. ISBN 0-405-07257-0. Ernst, Joseph Albert. Money and politics in America, 1755–1775: a study in the Currency act of 1764 and the political economy of revolution. Chapel ...

  6. Elementary mathematics - Wikipedia

    en.wikipedia.org/wiki/Elementary_mathematics

    Elementary mathematics, also known as primary or secondary school mathematics, is the study of mathematics topics that are commonly taught at the primary or secondary school levels around the world. It includes a wide range of mathematical concepts and skills, including number sense , algebra , geometry , measurement , and data analysis .

  7. 9 Rare American Coins That Are Worth a Lot of Money - AOL

    www.aol.com/9-rare-american-coins-worth...

    Here’s are nine American coins that are worth a lot of money. Trending Now: Suze Orman's Secret to a Wealthy Retirement--Have You Made This Money Move? 1969-D Kennedy Half Dollar: $2,640+

  8. Traditional mathematics - Wikipedia

    en.wikipedia.org/wiki/Traditional_mathematics

    For example, most American standards now require children to learn to recognize and extend patterns in kindergarten. This very basic form of algebraic reasoning is extended in elementary school to recognize patterns in functions and arithmetic operations, such as the distributive law, a key principle for doing high school algebra.

  9. Coins of the United States dollar - Wikipedia

    en.wikipedia.org/wiki/Coins_of_the_United_States...

    These coins began circulating on February 15, 2007. Starting 2012, these coins have been minted only for collectible sets because of a large stockpile. The Susan B. Anthony dollar coin was minted from 1979 to 1981 and 1999. The 1999 minting was in response to Treasury supplies of the dollar becoming depleted and the inability to accelerate the ...