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Talk:Vigesimal

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numbers between 11 and 19 are decimal based, but the first six follow the (older?) "ones-and-tens" rule: "onze"(11) = un-dix = one-ten, "seize"(16) = six-dix = six-ten, while the last three follow the "tens-and-ones" rule: "dix-sept"(17) = ten-seven. Above twenty, English and French follow the "tens-and-one" rule: twenty-one / vingt-et-un (20+1), while German goes the contrary: einundzwanzig (1+20)
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In romanian, when counting different objects or reffering to their number, if the number of objects is below 20, one puts in a sentece the numeral and the name of the object,for example "10 telephones = 10 telefoane". However, if the number is equal to or greater than 20, one adds another construct,
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In the old British currency system (pre-1971), there were 20 shillings to the pound. This was still the case under the decimal system introduced in 1971 for those shilling coins still in circulation (no more were minted and the shilling coin was demonetised in 1990), because the shilling - which was
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The note at the bottom of the article contains several external links to certain pages that are rather incomprehensible. Someone should replace those links by a legible summary, or a link to a Knowledge article. Also, One of them is a very long link that messes up the "diff" displays; can't it be
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system. "Eleven"/"elf" (English/German respectively) mean "one left", whereas "twelve"/"zwölf" mean "two left". From 13 to 19 the decimal system is used. The two number words are linked or melted into one word and follow the "ones-and-tens" rule: thirteen / dreizehn = three-ten. In French all
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valued at 12 pence in the old currency - was re-valued at 5 pence in the new system. Thus, the old shilling coins still accumulate 20 to the pound, because 20 x 5 new pence = 100 new pence = 1 pound (whereas in the old system, 1 pound equalled 240 pence instead of 100 pence).
170:) has suggested 0 1 2 3 4 5 6 7 8 9 ~ ! @ # $  % ^ & * <. as suitable digits. However I would not regard < and % as suitable. Also I don't think ther main page should contain suggestions of suitable digits but only digits that have been used. 162:
For this system, what letters do you think should be for 10-19?? Most people say 10=A, 11=B, 12=C, 13=D, 14=E, 15=F, 16=G, 17=H, 18=I, and 19=J. However, because an I can be easy to interpret as a 1, I prefer 18=J and 19=K.
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While I agree that it is a problem, most sources I remember actually using the letter-digits for vigesimal use I and J, not J and K, for 18 and 19. Maybe it could be fixed by font-forcing or using lowercase, though.
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It goes back a fairly long way, but the British were the main ones who kept it as a prominent feature of their monetary system into the 19th and 20th centuries...
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But I believe this was first instituted in Europe by the Franks (by Charlemagne). If someone can write authoritatively about this, please do.... --
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Not being English mother-tongued I prefer not dare about being "authoritative"... nevertheless, I can say about this opposition between one
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One of the Arana systems used the Arabic number with a dot or something similar. A scan of his proposal would be a good addition. --
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I was also surprised to find it missing. If it is part of Wiktionary, then there should be a link to the correct pronunciation. -
33: 365:.. which is not entirely true. Many Swiss-French people say quatre-vingts. Huitante is only used in Vaud, I think. 312:
is the same that the one in France (an probably Franks) between one fr:sou and five vieux (old) francs. The term
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on Knowledge. If you would like to participate, please visit the project page, where you can join
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replaced by a shorter link? Also, the link for '2' seems to point to a database query for '10'.
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English and German numerals between 11 and 19 are of two types: 11 and 12 are linked to a
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so the whole thing becomes "20 de telefoane" roughly translateable to "20 of telephones".
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Would this be relevant in the first item in the "Related observations" section?
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Could anyone be so kind as to add it? Wiktionary doesn't contain it either.
305: 361:(but 80 is quatre-vingts except in Switzerland where 80 is huitante). 439:
No objections in the past two months, so reverting back to I and J.
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Why these arbitrary factors? Why not say 20 = 2 x 2 x 5? --
471:("two tens"), so it is actually merely a plural of 10. 101:, a collaborative effort to improve the coverage of 278:Section on shillings refers to the British system: 320:introduction few years ago. Michel Alençon aka 8: 47: 414:-- 00:27, 20 November 2013‎ 85.2.83.186 357:In the article, it says the following: 49: 19: 7: 95:This article is within the scope of 38:It is of interest to the following 14: 508:Low-priority mathematics articles 115:Knowledge:WikiProject Mathematics 316:was still widely used prior the 118:Template:WikiProject Mathematics 82: 72: 51: 20: 135:This article has been rated as 249:05:30, 16 September 2008 (UTC) 228:18:00, 15 September 2008 (UTC) 1: 449:16:51, 19 February 2017 (UTC) 434:02:17, 21 December 2016 (UTC) 377:16:31, 17 November 2008 (UTC) 266:03:48, 12 November 2009 (UTC) 209:03:43, 28 February 2006 (UTC) 109:and see a list of open tasks. 503:C-Class mathematics articles 348:22:01, 31 October 2008 (UTC) 330:07:55, 6 November 2009 (UTC) 297:16:37, 30 October 2008 (UTC) 194:15:12, 31 October 2005 (UTC) 179:22:09, 11 January 2007 (UTC) 489:12:27, 1 January 2024 (UTC) 398:09:32, 11 August 2010 (UTC) 524: 463:In Danish, 20 (tyve) is a 134: 67: 46: 477:Danish language#Numerals 141:project's priority scale 98:WikiProject Mathematics 363: 285: 28:This article is rated 359: 280: 419:confusion of I and 1 403:Related observations 234:Cancelled / Updated: 121:mathematics articles 455:Related observation 199:Bad external links? 90:Mathematics portal 34:content assessment 383:Romanian Language 155: 154: 151: 150: 147: 146: 515: 123: 122: 119: 116: 113: 92: 87: 86: 76: 69: 68: 63: 55: 48: 31: 25: 24: 16: 523: 522: 518: 517: 516: 514: 513: 512: 493: 492: 457: 421: 405: 385: 355: 276: 216: 201: 187: 160: 120: 117: 114: 111: 110: 88: 81: 61: 32:on Knowledge's 29: 12: 11: 5: 521: 519: 511: 510: 505: 495: 494: 473: 472: 456: 453: 452: 451: 420: 417: 404: 401: 384: 381: 354: 351: 336: 335: 334: 333: 332: 275: 272: 271: 270: 269: 268: 241:Duncan MacCall 237: 236: 220:Duncan MacCall 215: 212: 200: 197: 186: 183: 182: 181: 159: 156: 153: 152: 149: 148: 145: 144: 133: 127: 126: 124: 107:the discussion 94: 93: 77: 65: 64: 56: 44: 43: 37: 26: 13: 10: 9: 6: 4: 3: 2: 520: 509: 506: 504: 501: 500: 498: 491: 490: 486: 482: 478: 470: 466: 462: 461: 460: 454: 450: 446: 442: 438: 437: 436: 435: 431: 427: 418: 416: 415: 410: 402: 400: 399: 395: 391: 382: 380: 378: 374: 370: 366: 362: 358: 352: 350: 349: 345: 341: 331: 327: 323: 319: 315: 311: 307: 303: 302: 301: 300: 299: 298: 294: 290: 289:Friarslantern 284: 279: 273: 267: 263: 259: 255: 254: 253: 252: 251: 250: 246: 242: 235: 232: 231: 230: 229: 225: 221: 214:Pronunciation 213: 211: 210: 207: 198: 196: 195: 192: 184: 180: 177: 173: 172: 171: 169: 168:206.80.111.48 164: 158:Digits over 9 157: 142: 138: 132: 129: 128: 125: 108: 104: 100: 99: 91: 85: 80: 78: 75: 71: 70: 66: 60: 57: 54: 50: 45: 41: 35: 27: 23: 18: 17: 474: 468: 458: 441:Double sharp 426:Double sharp 422: 413: 406: 386: 367: 364: 360: 356: 337: 322:82.224.88.52 286: 281: 277: 238: 233: 217: 206:Jorge Stolfi 202: 188: 166:Someone (on 165: 161: 137:Low-priority 136: 96: 62:Low‑priority 40:WikiProjects 369:84.73.71.29 112:Mathematics 103:mathematics 59:Mathematics 497:Categories 409:duodecimal 469:tuttiughu 465:haplology 308:and five 274:Shillings 353:Huitante 340:AnonMoos 306:shilling 185:20 = 5x4 139:on the 30:C-class 390:Blakut 379:Lucas 310:pences 258:KitchM 191:MarSch 36:scale. 475:(see 176:Error 485:talk 445:talk 430:talk 394:talk 373:talk 344:talk 326:talk 318:euro 293:talk 262:talk 245:talk 224:talk 479:)? 467:of 314:sou 131:Low 499:: 487:) 481:Nø 447:) 432:) 396:) 375:) 346:) 328:) 295:) 264:) 247:) 239:. 226:) 483:( 443:( 428:( 392:( 371:( 342:( 324:( 291:( 260:( 243:( 222:( 143:. 42::

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206.80.111.48
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Friarslantern

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