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2. Subtraction - Wikipedia

   en.wikipedia.org/wiki/Subtraction

   The subtraction of a real number (the subtrahend) from another (the minuend) can then be defined as the addition of the minuend and the additive inverse of the subtrahend. For example, 3 − π = 3 + (−π). Alternatively, instead of requiring these unary operations, the binary operations of subtraction and division can be taken as basic.

3. Elementary arithmetic - Wikipedia

   en.wikipedia.org/wiki/Elementary_arithmetic

   The symbols for elementary-level math operations. From top-left going clockwise: addition, division, multiplication, and subtraction. Elementary arithmetic is a branch of mathematics involving addition, subtraction, multiplication, and division.

4. Arithmetic - Wikipedia

   en.wikipedia.org/wiki/Arithmetic

   Subtraction is often treated as a special case of addition: instead of subtracting a positive number, it is also possible to add a negative number. For instance = + (). This helps to simplify mathematical computations by reducing the number of basic arithmetic operations needed to perform calculations. [48]

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. Keisan Game - Wikipedia

   en.wikipedia.org/wiki/Keisan_Game

   More advanced versions of subtraction (ひきざん) and multiplication (かけざん) are also included to teach all four basic functions of arithmetics. Intended to be an educational video game, there is little variety to this video game. Variations for one-player (ひとりでやる) and two-player (ふたりでやる) games are included ...

7. Category:Elementary arithmetic - Wikipedia

   en.wikipedia.org/wiki/Category:Elementary_arithmetic

   Subtraction (4 C, 16 P) Pages in category "Elementary arithmetic" The following 41 pages are in this category, out of 41 total. This list may not reflect recent ...