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References to 'subtraction'
1. ${\mathbb{Z}}_n$ by Wkbj79
2. algebraically solvable by pahio
3. algorithm for modular exponentiation by PrimeFan
4. alternating sum by PrimeFan
5. An over view of Ahmes Papyrus by milogardner
6. arithmetic by PrimeFan
7. calculator by PrimeFan
8. centralizers in algebra by Algeboy
9. closure of a subset under relations by CWoo
10. commutative by CWoo
11. cube root by Daume
12. derived Boolean operations by CWoo
13. difference by pahio
14. dihedral group by rmilson
15. divisibility test by CompositeFan
16. economic context of Egyptian fractions by milogardner
17. Egyptian fraction by milogardner
18. Egyptian multiplication and division by milogardner
19. elementary function by pahio
20. examples of fields by AxelBoldt
21. examples of the Fermat method on a few integers by PrimeFan
22. field adjunction by pahio
23. fixed-point arithmetic by PrimeFan
24. freshman's dream error by Wkbj79
25. Friedman number by aplant
26. Google calculator by CompositeFan
27. Hultsch-Bruins method by milogardner
28. hyperbolas orthogonal to ellipses by pahio
29. index of tables by PrimeFan
30. Kahun Papyrus and Arithmetic Progressions by milogardner
31. Liber Abaci by milogardner
32. mathematics vocabulary by matte
33. mock-up of a basic calculator by PrimeFan
34. negative number by PrimeFan
35. nth root by mathcam
36. one-pass algorithm to compute sample variance by stevecheng
37. operation by rspuzio
38. opposite polynomial by pahio
39. partial algebraic system by CWoo
40. Polish notation by PrimeFan
41. proof of embedding theorem for ordered abelian groups of rank one by rspuzio
42. properties of ellipse by pahio
43. properties of ordinal arithmetic by CWoo
44. Prosthaphaeresis formulas by mathfanatic
45. real number by djao
46. remainder arithmetic vs Egyptian fractions by milogardner
47. ring by djao
48. ring adjunction by pahio
49. RMP 53, 54, 55 by milogardner
50. Roman numerals by Koro
51. Rydia's Mathemagic Minute by PrimeFan
52. some examples of Friedman numbers in Roman numerals by Mravinci
53. square root by Wkbj79
54. subalgebra of a partial algebra by CWoo
55. subfunction by CWoo
56. table of subtraction up to 12 by PrimeFan
57. the difference of two odd squares is always a multiple of 8 by PrimeFan
58. topic entry on real numbers by matte
59. URM computable by CWoo
60. vector identities by mark_t314159
61. Why Study Egyptian Fraction Mathematics by milogardner