1-(209) 566-6854 这是美国的电话号码还是手机号?

作者&投稿:线以 (若有异议请与网页底部的电邮联系)
电话+233245XXXXX是美国的电话号码么? 哪个城市的?~

美国电话区号一览表


区号 地区或服务
200 易识码(特服号)
201 New Jersey 新泽西
202 District of Columbia 哥伦比亚特区
203 Connecticut 康涅狄格
204 Manitoba
205 Alabama 阿拉巴马
206 Washington 华盛顿
207 Maine
208 Idaho 爱达荷
209 California 加利福尼亚
210 Texas 德克萨斯
211 无
212 New York 纽约
213 California
214 Texas
215 Pennsylvania
216 Ohio
217 Illinois
218 Minnesota
219 Indiana
220 General Purpose Code
221 Geographic Relief Code
222 易识码(特服号)
223 Geographic Relief Code
224 Illinois
225 Louisiana
226 Geographic Relief Code
227 Geographic Relief Code
228 Mississippi
229 Geographic Relief Code
230 Geographic Relief Code
231 Michigan
232 Geographic Relief Code
233 易识码(特服号)
234 Geographic Relief Code
235 Geographic Relief Code
236 General Purpose Code
237 Geographic Relief Code
238 General Purpose Code
239 Geographic Relief Code
240 Maryland
241 General Purpose Code
242 Bahamas
243 Geographic Relief Code
244 易识码(特服号)
245 General Purpose Code
246 Barbados
247 Geographic Relief Code
248 Michigan
249 General Purpose Code
250 British Columbia
251 Geographic Relief Code
252 North Carolina
253 Washington
254 Texas
255 易识码(特服号)
256 Alabama
257 General Purpose Code
258 Geographic Relief Code
259 General Purpose Code
260 Geographic Relief Code
261 Geographic Relief Code
262 Wisconsin
263 General Purpose Code
264 Anguilla
265 General Purpose Code
266 易识码(特服号)
267 Pennsylvania
268 Antigua/Barbuda
269 General Purpose Code
270 Kentucky
271 Geographic Relief Code
272 Geographic Relief Code
273 Geographic Relief Code
274 General Purpose Code
275 Geographic Relief Code
276 Geographic Relief Code
277 易识码(特服号)
278 Geographic Relief Code
279 General Purpose Code
280 Geographic Relief Code
281 Texas
282 Geographic Relief Code
283 General Purpose Code
284 British Virgin Islands
285 General Purpose Code
286 Geographic Relief Code
287 Geographic Relief Code
288 易识码(特服号)
289 Geographic Relief Code
290 扩展码
291 扩展码
292 扩展码
293 扩展码
294 扩展码
295 扩展码
296 扩展码
297 扩展码
298 扩展码
299 扩展码
300 易识码(特服号)
301 Maryland
302 Delaware
303 Colorado
304 West Virginia
305 Florida
306 Saskatchewan
307 Wyoming
308 Nebraska
309 Illinois
310 California
311 Non-Emergency Access
312 Illinois
313 Michigan
314 Missouri
315 New York
316 Kansas
317 Indiana
318 Louisiana
319 Iowa
320 Minnesota
321 Florida
322 易识码(特服号)
323 California
324 Geographic Relief Code
325 Geographic Relief Code
326 Geographic Relief Code
327 Geographic Relief Code
328 Geographic Relief Code
329 General Purpose Code
330 Ohio
331 Illinois
332 Geographic Relief Code
333 易识码(特服号)
334 Alabama
335 Geographic Relief Code
336 North Carolina
337 Louisiana
338 Geographic Relief Code
339 General Purpose Code
340 US Virgin Islands
341 California
342 General Purpose Code
343 Geographic Relief Code
344 易识码(特服号)
345 Cayman Islands
346 General Purpose Code
347 New York
348 Geographic Relief Code
349 General Purpose Code
350 Geographic Relief Code
351 Geographic Relief Code
352 Florida
353 Geographic Relief Code
354 General Purpose Code
355 易识码(特服号)
356 Geographic Relief Code
357 General Purpose Code
358 Geographic Relief Code
359 General Purpose Code
360 Washington
361 Texas
362 General Purpose Code
363 General Purpose Code
364 Geographic Relief Code
365 Geographic Relief Code
366 易识码(特服号)
367 General Purpose Code
368 General Purpose Code
369 Geographic Relief Code
370 保留
371 保留
372 保留
373 保留
374 保留
375 保留
376 保留
377 保留
378 保留
379 保留
380 Geographic Relief Code
381 Geographic Relief Code
382 General Purpose Code
383 Geographic Relief Code
384 Geographic Relief Code
385 Geographic Relief Code
386 Geographic Relief Code
387 Geographic Relief Code
388 易识码(特服号)
389 Geographic Relief Code
390 扩展码
391 扩展码
392 扩展码
393 扩展码
394 扩展码
395 扩展码
396 扩展码
397 扩展码
398 扩展码
399 扩展码
400 易识码(特服号)
401 Rhode Island
402 Nebraska
403 Alberta
404 Georgia
405 Oklahoma
406 Montana
407 Florida
408 California
409 Texas
410 Maryland
411 Local Directory Assistance
412 Pennsylvania
413 Massachusetts
414 Wisconsin
415 California
416 Ontario
417 Missouri
418 Quebec
419 Ohio
420 Geographic Relief Code
421 Geographic Relief Code
422 易识码(特服号)
423 Tennessee
424 California
425 Washington
426 Geographic Relief Code
427 General Purpose Code
428 General Purpose Code
429 General Purpose Code
430 Geographic Relief Code
431 Geographic Relief Code
432 Geographic Relief Code
433 易识码(特服号)
434 General Purpose Code
435 Utah
436 Geographic Relief Code
437 Geographic Relief Code
438 General Purpose Code
439 Geographic Relief Code
440 Ohio
441 Bermuda
442 California
443 Maryland
444 易识码(特服号)
445 Geographic Relief Code
446 Geographic Relief Code
447 Geographic Relief Code
448 General Purpose Code
449 Geographic Relief Code
450 Quebec
451 General Purpose Code
452 General Purpose Code
453 General Purpose Code
454 General Purpose Code
455 易识码(特服号)
456 Inbound International
457 Geographic Relief Code
458 Geographic Relief Code
459 Geographic Relief Code
460 Geographic Relief Code
461 Geographic Relief Code
462 General Purpose Code
463 Geographic Relief Code
464 Illinois
465 Geographic Relief Code
466 易识码(特服号)
467 General Purpose Code
468 Geographic Relief Code
469 Texas
470 Geographic Relief Code
471 General Purpose Code
472 Geographic Relief Code
473 Grenada
474 Geographic Relief Code
475 Geographic Relief Code
476 General Purpose Code
477 易识码(特服号)
478 Geographic Relief Code
479 Geographic Relief Code
480 Arizona
481 General Purpose Code
482 Geographic Relief Code
483 Geographic Relief Code
484 Pennsylvania
485 General Purpose Code
486 Geographic Relief Code
487 General Purpose Code
488 易识码(特服号)
489 General Purpose Code
490 扩展码
491 扩展码
492 扩展码
493 扩展码
494 扩展码
495 扩展码
496 扩展码
497 扩展码
498 扩展码
499 扩展码
500 Personal Communication Services
501 Arkansas
502 Kentucky
503 Oregon
504 Louisiana
505 New Mexico
506 New Brunswick
507 Minnesota
508 Massachusetts
509 Washington
510 California
511 Not Available
512 Texas
513 Ohio
514 Quebec
515 Iowa
516 New York
517 Michigan
518 New York
519 Ontario
520 Arizona
521 Mexico Roaming-Temp
522 Future PCS
523 Mexico Roaming-Temp
524 Mexico Roaming-Temp
525 Mexico Roaming-Temp
526 Mexico Roaming-Temp
527 Mexico Roaming-Temp
528 Mexico Roaming-Temp
529 Mexico Roaming-Temp
530 California
531 Geographic Relief Code
532 Geographic Relief Code
533 Future PCS
534 General Purpose Code
535 Geographic Relief Code
536 Geographic Relief Code
537 General Purpose Code
538 Geographic Relief Code
539 Geographic Relief Code
540 Virginia
541 Oregon
542 Geographic Relief Code
543 General Purpose Code
544 Future PCS
545 Geographic Relief Code
546 General Purpose Code
547 Geographic Relief Code
548 General Purpose Code
549 General Purpose Code
550 Geographic Relief Code
551 Geographic Relief Code
552 Geographic Relief Code
553 Geographic Relief Code
554 Geographic Relief Code
555 Not Available
556 Geographic Relief Code
557 Geographic Relief Code
558 Geographic Relief Code
559 California
560 Geographic Relief Code
561 Florida
562 California
563 Geographic Relief Code
564 General Purpose Code
565 Geographic Relief Code
566 Future PCS
567 Geographic Relief Code
568 General Purpose Code
569 General Purpose Code
570 Pennsylvania
571 Virginia
572 Geographic Relief Code
573 Missouri
574 Geographic Relief Code
575 General Purpose Code
576 General Purpose Code
577 Future PCS
578 Geographic Relief Code
579 Geographic Relief Code
580 Oklahoma
581 General Purpose Code
582 General Purpose Code
583 Geographic Relief Code
584 Geographic Relief Code
585 Geographic Relief Code
586 Michigan
587 Geographic Relief Code
588 Future PCS
589 Geographic Relief Code
590 扩展码
591 扩展码
592 扩展码
593 扩展码
594 扩展码
595 扩展码
596 扩展码
597 扩展码
598 扩展码
599 扩展码
600 Canada (Services)
601 Mississippi
602 Arizona
603 New Hampshire
604 British Columbia
605 South Dakota
606 Kentucky
607 New York
608 Wisconsin
609 New Jersey
610 Pennsylvania
611 Repair Service
612 Minnesota
613 Ontario
614 Ohio
615 Tennessee
616 Michigan
617 Massachusetts
618 Illinois
619 California
620 Geographic Relief Code
621 Geographic Relief Code
622 易识码(特服号)
623 Arizona
624 Geographic Relief Code
625 General Purpose Code
626 California
627 General Purpose Code
628 California
629 General Purpose Code
630 Illinois
631 New York
632 General Purpose Code
633 易识码(特服号)
634 General Purpose Code
635 General Purpose Code
636 Missouri
637 Geographic Relief Code
638 General Purpose Code
639 General Purpose Code
640 Geographic Relief Code
641 Geographic Relief Code
642 Geographic Relief Code
643 General Purpose Code
644 易识码(特服号)
645 General Purpose Code
646 New York
647 Ontario
648 Geographic Relief Code
649 Turks & Caicos Islands
650 California
651 Minnesota
652 General Purpose Code
653 General Purpose Code
001+209+电话号码
即: 国家号+城市区号+电话号码

很遗憾,259不是区号,而是通用万能号码即通过电话IP卡拔出的,通过美国区号查不到对应的州。

美国电话区号一览表
区号 地区或服务
200 易识码(特服号)
201 New Jersey 新泽西
202 District of Columbia 哥伦比亚特区
203 Connecticut 康涅狄格
204 Manitoba
205 Alabama 阿拉巴马
206 Washington 华盛顿
207 Maine
208 Idaho 爱达荷
209 California 加利福尼亚
210 Texas 德克萨斯
211 无
212 New York 纽约
213 California
214 Texas
215 Pennsylvania
216 Ohio
217 Illinois
218 Minnesota
219 Indiana
220 General Purpose Code
221 Geographic Relief Code
222 易识码(特服号)
223 Geographic Relief Code
224 Illinois
225 Louisiana
226 Geographic Relief Code
227 Geographic Relief Code
228 Mississippi
229 Geographic Relief Code
230 Geographic Relief Code
231 Michigan
232 Geographic Relief Code
233 易识码(特服号)
234 Geographic Relief Code
235 Geographic Relief Code
236 General Purpose Code
237 Geographic Relief Code
238 General Purpose Code
239 Geographic Relief Code
240 Maryland
241 General Purpose Code
242 Bahamas
243 Geographic Relief Code
244 易识码(特服号)
245 General Purpose Code
246 Barbados
247 Geographic Relief Code
248 Michigan
249 General Purpose Code
250 British Columbia
251 Geographic Relief Code
252 North Carolina
253 Washington
254 Texas
255 易识码(特服号)
256 Alabama
257 General Purpose Code
258 Geographic Relief Code
259 General Purpose Code
260 Geographic Relief Code
261 Geographic Relief Code
262 Wisconsin
263 General Purpose Code
264 Anguilla
265 General Purpose Code
266 易识码(特服号)
267 Pennsylvania
268 Antigua/Barbuda
269 General Purpose Code
270 Kentucky
271 Geographic Relief Code
272 Geographic Relief Code
273 Geographic Relief Code
274 General Purpose Code
275 Geographic Relief Code
276 Geographic Relief Code
277 易识码(特服号)
278 Geographic Relief Code
279 General Purpose Code
280 Geographic Relief Code
281 Texas
282 Geographic Relief Code
283 General Purpose Code
284 British Virgin Islands
285 General Purpose Code
286 Geographic Relief Code
287 Geographic Relief Code
288 易识码(特服号)
289 Geographic Relief Code
290 扩展码
291 扩展码
292 扩展码
293 扩展码
294 扩展码
295 扩展码
296 扩展码
297 扩展码
298 扩展码
299 扩展码
300 易识码(特服号)
301 Maryland
302 Delaware
303 Colorado
304 West Virginia
305 Florida
306 Saskatchewan
307 Wyoming
308 Nebraska
309 Illinois
310 California
311 Non-Emergency Access
312 Illinois
313 Michigan
314 Missouri
315 New York
316 Kansas
317 Indiana
318 Louisiana
319 Iowa
320 Minnesota
321 Florida
322 易识码(特服号)
323 California
324 Geographic Relief Code
325 Geographic Relief Code
326 Geographic Relief Code
327 Geographic Relief Code
328 Geographic Relief Code
329 General Purpose Code
330 Ohio
331 Illinois
332 Geographic Relief Code
333 易识码(特服号)
334 Alabama
335 Geographic Relief Code
336 North Carolina
337 Louisiana
338 Geographic Relief Code
339 General Purpose Code
340 US Virgin Islands
341 California
342 General Purpose Code
343 Geographic Relief Code
344 易识码(特服号)
345 Cayman Islands
346 General Purpose Code
347 New York
348 Geographic Relief Code
349 General Purpose Code
350 Geographic Relief Code
351 Geographic Relief Code
352 Florida
353 Geographic Relief Code
354 General Purpose Code
355 易识码(特服号)
356 Geographic Relief Code
357 General Purpose Code
358 Geographic Relief Code
359 General Purpose Code
360 Washington
361 Texas
362 General Purpose Code
363 General Purpose Code
364 Geographic Relief Code
365 Geographic Relief Code
366 易识码(特服号)
367 General Purpose Code
368 General Purpose Code
369 Geographic Relief Code
370 保留
371 保留
372 保留
373 保留
374 保留
375 保留
376 保留
377 保留
378 保留
379 保留
380 Geographic Relief Code
381 Geographic Relief Code
382 General Purpose Code
383 Geographic Relief Code
384 Geographic Relief Code
385 Geographic Relief Code
386 Geographic Relief Code
387 Geographic Relief Code
388 易识码(特服号)
389 Geographic Relief Code
390 扩展码
391 扩展码
392 扩展码
393 扩展码
394 扩展码
395 扩展码
396 扩展码
397 扩展码
398 扩展码
399 扩展码
400 易识码(特服号)
401 Rhode Island
402 Nebraska
403 Alberta
404 Georgia
405 Oklahoma
406 Montana
407 Florida
408 California
409 Texas
410 Maryland
411 Local Directory Assistance
412 Pennsylvania
413 Massachusetts
414 Wisconsin
415 California
416 Ontario
417 Missouri
418 Quebec
419 Ohio
420 Geographic Relief Code
421 Geographic Relief Code
422 易识码(特服号)
423 Tennessee
424 California
425 Washington
426 Geographic Relief Code
427 General Purpose Code
428 General Purpose Code
429 General Purpose Code
430 Geographic Relief Code
431 Geographic Relief Code
432 Geographic Relief Code
433 易识码(特服号)
434 General Purpose Code
435 Utah
436 Geographic Relief Code
437 Geographic Relief Code
438 General Purpose Code
439 Geographic Relief Code
440 Ohio
441 Bermuda
442 California
443 Maryland
444 易识码(特服号)
445 Geographic Relief Code
446 Geographic Relief Code
447 Geographic Relief Code
448 General Purpose Code
449 Geographic Relief Code
450 Quebec
451 General Purpose Code
452 General Purpose Code
453 General Purpose Code
454 General Purpose Code
455 易识码(特服号)
456 Inbound International
457 Geographic Relief Code
458 Geographic Relief Code
459 Geographic Relief Code
460 Geographic Relief Code
461 Geographic Relief Code
462 General Purpose Code
463 Geographic Relief Code
464 Illinois
465 Geographic Relief Code
466 易识码(特服号)
467 General Purpose Code
468 Geographic Relief Code
469 Texas
470 Geographic Relief Code
471 General Purpose Code
472 Geographic Relief Code
473 Grenada
474 Geographic Relief Code
475 Geographic Relief Code
476 General Purpose Code
477 易识码(特服号)
478 Geographic Relief Code
479 Geographic Relief Code
480 Arizona
481 General Purpose Code
482 Geographic Relief Code
483 Geographic Relief Code
484 Pennsylvania
485 General Purpose Code
486 Geographic Relief Code
487 General Purpose Code
488 易识码(特服号)
489 General Purpose Code
490 扩展码
491 扩展码
492 扩展码
493 扩展码
494 扩展码
495 扩展码
496 扩展码
497 扩展码
498 扩展码
499 扩展码
500 Personal Communication Services
501 Arkansas
502 Kentucky
503 Oregon
504 Louisiana
505 New Mexico
506 New Brunswick
507 Minnesota
508 Massachusetts
509 Washington
510 California
511 Not Available
512 Texas
513 Ohio
514 Quebec
515 Iowa
516 New York
517 Michigan
518 New York
519 Ontario
520 Arizona
521 Mexico Roaming-Temp
522 Future PCS
523 Mexico Roaming-Temp
524 Mexico Roaming-Temp
525 Mexico Roaming-Temp
526 Mexico Roaming-Temp
527 Mexico Roaming-Temp
528 Mexico Roaming-Temp
529 Mexico Roaming-Temp
530 California
531 Geographic Relief Code
532 Geographic Relief Code
533 Future PCS
534 General Purpose Code
535 Geographic Relief Code
536 Geographic Relief Code
537 General Purpose Code
538 Geographic Relief Code
539 Geographic Relief Code
540 Virginia
541 Oregon
542 Geographic Relief Code
543 General Purpose Code
544 Future PCS
545 Geographic Relief Code
546 General Purpose Code
547 Geographic Relief Code
548 General Purpose Code
549 General Purpose Code
550 Geographic Relief Code
551 Geographic Relief Code
552 Geographic Relief Code
553 Geographic Relief Code
554 Geographic Relief Code
555 Not Available
556 Geographic Relief Code
557 Geographic Relief Code
558 Geographic Relief Code
559 California
560 Geographic Relief Code
561 Florida
562 California
563 Geographic Relief Code
564 General Purpose Code
565 Geographic Relief Code
566 Future PCS
567 Geographic Relief Code
568 General Purpose Code
569 General Purpose Code
570 Pennsylvania
571 Virginia
572 Geographic Relief Code
573 Missouri
574 Geographic Relief Code
575 General Purpose Code
576 General Purpose Code
577 Future PCS
578 Geographic Relief Code
579 Geographic Relief Code
580 Oklahoma
581 General Purpose Code
582 General Purpose Code
583 Geographic Relief Code
584 Geographic Relief Code
585 Geographic Relief Code
586 Michigan
587 Geographic Relief Code
588 Future PCS
589 Geographic Relief Code
590 扩展码
591 扩展码
592 扩展码
593 扩展码
594 扩展码
595 扩展码
596 扩展码
597 扩展码
598 扩展码
599 扩展码
600 Canada (Services)
601 Mississippi
602 Arizona
603 New Hampshire
604 British Columbia
605 South Dakota
606 Kentucky
607 New York
608 Wisconsin
609 New Jersey
610 Pennsylvania
611 Repair Service
612 Minnesota
613 Ontario
614 Ohio
615 Tennessee
616 Michigan
617 Massachusetts
618 Illinois
619 California
620 Geographic Relief Code
621 Geographic Relief Code
622 易识码(特服号)
623 Arizona
624 Geographic Relief Code
625 General Purpose Code
626 California
627 General Purpose Code
628 California
629 General Purpose Code
630 Illinois
631 New York
632 General Purpose Code
633 易识码(特服号)
634 General Purpose Code
635 General Purpose Code
636 Missouri
637 Geographic Relief Code
638 General Purpose Code
639 General Purpose Code
640 Geographic Relief Code
641 Geographic Relief Code
642 Geographic Relief Code
643 General Purpose Code
644 易识码(特服号)
645 General Purpose Code
646 New York
647 Ontario
648 Geographic Relief Code
649 Turks & Caicos Islands
650 California
651 Minnesota
652 General Purpose Code
653 General Purpose Code

  1-(209) 566-6854 无法确定是美国的电话号码还是手机号。
  1-(209) 566-6854分别代表:
  (00)1:美国区号;
  209:是地方区号;
  566-6854:是电话号码或手机号码。
  美国各州电话区号:
  201:美国 - 新泽西州 (Hackensack, Jersey City, Hoboken 以及新泽西州东北部,与551重叠)
  202:美国 - 华盛顿哥伦比亚特区
  203:美国 - 康涅狄格州 (Bridgeport, New Haven, Waterbury以及康乃狄克州西南部,与475重叠)
  204:加拿大 - 缅尼托巴省
  205:美国 - 阿拉巴马州(过去曾包括全州,如今仍涵盖其最大城市Birmingham、Tuscaloosa以及阿拉巴马州的中部和西部)
  206:美国 - 华盛顿地区 (All of Bainbridge, Mercer, and Vashon Islands, and the cities of Burien, Des
  207:美国 - 缅因州
  208:美国 - 爱德荷州
  209:美国 - 加利福尼亚州 (Stockton, Merced, Modesto, San Andreas 以及加利福尼亚州中部)
  210:美国 - 德克萨斯州 (圣安东尼奥地区)
  212:美国 - 纽约州 (纽约市:仅限于曼哈顿地区,与646和917重叠)
  213:美国 - 加利福尼亚州 (仅限于洛杉矶市中心部分)
  214:美国 - 德克萨斯州 (达拉斯地区,与469和972重叠)
  215:美国 - 宾夕法尼亚州 (费城地区,与267和445重叠)
  216:美国 - 俄亥俄州 (克里夫兰地区)
  217:美国 - 伊利诺州 (Champaign, Decatur, Urbana, Springfield 以及伊利诺州中部)
  218:美国 - 明尼苏达州 (Duluth, Thief River Falls, Brainerd, International Falls 以及明尼苏达州北部)
  219:美国 - 印第安纳州 (Gary, Hammond Valparaiso, 密歇根市, Goodland, Fowler 以及印第安纳州西北部地区,包括部分的Chicagoland)
  224:美国 - 伊利诺州 (Waukegan, Des Plaines, 芝加哥西北市郊以及伊利诺州东北部,与847重叠)
  225:美国 - 路易斯安那州 (Baton Rouge, New Roads, White Castle 以及路易斯安那州东部中间地区)
  226:加拿大 - 安大略省 (London, Windsor 以及安大略省西南部,与519重叠(implementing late 2004))
  228:美国 - 密西西比州 (Gulfport, Pascagoula, Biloxi, Bay St Louis and southern Mississippi gulf coast)

美国的手机号码与座机号码长度一样,直接看不出来。根据美国号码归属地查询可以知道应该是Modesto, CA的一部座机(Landline)号码。


万载县13771403046: 0,1,4,15,56,209 这行数的规律是什么 -
徐钢波依: 规律如下:1*4-0=4 4*4-1=15 15*4-4=56 56*4-15=209 如果我的回答对你有帮助,请及时选为满意答案,谢谢~~

万载县13771403046: 0,1,4,15,56,209有什么规律 -
徐钢波依: 0 1 4=1*4-0 15=4*4-1 56=15*4-4 209=56*4-15

万载县13771403046: 设sn=1 - 3+5 - 7+.....+209 - 211 -
徐钢波依:Sn=(1-3)+(5-7)+......+(209-211) =-2*(211+1)/2 =-2*106 =-212

万载县13771403046: 求1至209连续自然数的全部数字之和 -
徐钢波依: (1+9*2)*(200\2)+(2*10+1+2+……+9)=1965 答:1至209连续自然数的全部数字之和是1965

万载县13771403046: 297+293+289+……+209怎么用简便方法 -
徐钢波依: 297+293+289+……+209=5819. (297-209)÷4+1=23项 中间项(第12项)为297-(12-1)*4=253 第1项和第23项的和为297+209=506 第2项和第22项的和为293+213=506 ……………… 第11项和第13项的和为257+249=506 共11个 所以原式=...

万载县13771403046: 1209+346一209+654简算是什么 -
徐钢波依: =1209-209+346+654=1000+1000=2000

万载县13771403046: 209÷209又1/208的简便方法 -
徐钢波依: 209÷209又1/208=209÷(209+1/208)=(209÷209)÷【(209+1/208)÷209】=1÷【(209+1/208)÷209】=1÷(1+1/208*209)=1÷(1+1/43472)=43472/43473

万载县13771403046: 501一209的简算 -
徐钢波依: =500+1-(200+9)=500+1-200-9=500-200-9+1=300-8=292

万载县13771403046: 把1/209化为两个真分数的和 -
徐钢波依: 1/209 =3/627 =1/627+2/627请好评 ~在右上角点击【评价】,然后就可以选择【满意,问题已经完美解决】了. 如果你认可我的回答,敬请及时采纳, ~你的采纳是我前进的动力~~

万载县13771403046: 小马虎在做一道除法算式时把被除数236写成216,结果商比原来减少了4,余数不变,正确的结果是多少 -
徐钢波依: 余数不变,商比原来少4,那么被除数写少的部分=除数*4. 236-216=除数*4,得出除数为5. 236/5=47......1

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