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2. Principles of Hindu Reckoning - Wikipedia

   en.wikipedia.org/wiki/Principles_of_Hindu_Reckoning

   400AD Sunzi subtraction algorithm 11th-century Hindu subtraction 5625–839. In the 3rd section of his book, Kushyar ibn Labban provided step by step algorithm for subtraction of 839 from 5625. Second row digits remained in place at all time.

3. Mirifici Logarithmorum Canonis Descriptio - Wikipedia

   en.wikipedia.org/wiki/Mirifici_Logarithmorum...

   [4]: p. 16 He wrote a separate volume describing how he constructed his tables, but held off publication to see how his first book would be received. John died in 1617. His son, Robert, published his father's book, Mirifici Logarithmorum Canonis Constructio, with additions by Henry Briggs in 1619.

4. On Numbers and Games - Wikipedia

   en.wikipedia.org/wiki/On_Numbers_and_Games

   The book is roughly divided into two sections: the first half (or Zeroth Part), on numbers, the second half (or First Part), on games. In the Zeroth Part, Conway provides axioms for arithmetic: addition, subtraction, multiplication, division and inequality.

5. I Spy (book series) - Wikipedia

   en.wikipedia.org/wiki/I_Spy_(book_series)

   Jean Marzollo was the award-winning author of over 100 books, including Help Me Learn Numbers 0-20, Help Me Learn Addition, Help Me Learn Subtraction, Pierre the Penguin, Soccer Sam, Happy Birthday Martin Luther King, The Little Plant Doctor, In 1776, Mama Mama/Papa Papa, and I Am Water, as well as books for parents and teachers such as The New Kindergarten.

6. Arithmetic - Wikipedia

   en.wikipedia.org/wiki/Arithmetic

   The main arithmetic operations are addition, subtraction, multiplication, and division. Arithmetic is an elementary branch of mathematics that studies numerical operations like addition, subtraction, multiplication, and division. In a wider sense, it also includes exponentiation, extraction of roots, and taking logarithms.

7. Henricus Grammateus - Wikipedia

   en.wikipedia.org/wiki/Henricus_Grammateus

   Ayn new Kunstlich Buech (A New Skill Book), Vienna 1518, Nuremberg 1521 - contains (besides Johannes Widmann) the earliest-known use of the plus and minus signs for addition and subtraction [3] and is the earliest German text on bookkeeping [4]