Talen 401 till 500 i romerska siffror
I högerkolumnen visas hur varje romersk siffra bidrar till att man hamnar vid rätt tal.
| 401 | = | CDI | = | 500 − 100 + 1 |
| 402 | = | CDII | = | 500 − 100 + 1 + 1 |
| 403 | = | CDIII | = | 500 − 100 + 1 + 1 + 1 |
| 404 | = | CDIV | = | 500 − 100 + 5 − 1 |
| 405 | = | CDV | = | 500 − 100 + 5 |
| 406 | = | CDVI | = | 500 − 100 + 5 + 1 |
| 407 | = | CDVII | = | 500 − 100 + 5 + 1 + 1 |
| 408 | = | CDVIII | = | 500 − 100 + 5 + 1 + 1 + 1 |
| 409 | = | CDIX | = | 500 − 100 + 10 − 1 |
| 410 | = | CDX | = | 500 − 100 + 10 |
| 411 | = | CDXI | = | 500 − 100 + 10 + 1 |
| 412 | = | CDXII | = | 500 − 100 + 10 + 1 + 1 |
| 413 | = | CDXIII | = | 500 − 100 + 10 + 1 + 1 + 1 |
| 414 | = | CDXIV | = | 500 − 100 + 10 + 5 − 1 |
| 415 | = | CDXV | = | 500 − 100 + 10 + 5 |
| 416 | = | CDXVI | = | 500 − 100 + 10 + 5 + 1 |
| 417 | = | CDXVII | = | 500 − 100 + 10 + 5 + 1 + 1 |
| 418 | = | CDXVIII | = | 500 − 100 + 10 + 5 + 1 + 1 + 1 |
| 419 | = | CDXIX | = | 500 − 100 + 10 + 10 − 1 |
| 420 | = | CDXX | = | 500 − 100 + 10 + 10 |
| 421 | = | CDXXI | = | 500 − 100 + 10 + 10 + 1 |
| 422 | = | CDXXII | = | 500 − 100 + 10 + 10 + 1 + 1 |
| 423 | = | CDXXIII | = | 500 − 100 + 10 + 10 + 1 + 1 + 1 |
| 424 | = | CDXXIV | = | 500 − 100 + 10 + 10 + 5 − 1 |
| 425 | = | CDXXV | = | 500 − 100 + 10 + 10 + 5 |
| 426 | = | CDXXVI | = | 500 − 100 + 10 + 10 + 5 + 1 |
| 427 | = | CDXXVII | = | 500 − 100 + 10 + 10 + 5 + 1 + 1 |
| 428 | = | CDXXVIII | = | 500 − 100 + 10 + 10 + 5 + 1 + 1 + 1 |
| 429 | = | CDXXIX | = | 500 − 100 + 10 + 10 + 10 − 1 |
| 430 | = | CDXXX | = | 500 − 100 + 10 + 10 + 10 |
| 431 | = | CDXXXI | = | 500 − 100 + 10 + 10 + 10 + 1 |
| 432 | = | CDXXXII | = | 500 − 100 + 10 + 10 + 10 + 1 + 1 |
| 433 | = | CDXXXIII | = | 500 − 100 + 10 + 10 + 10 + 1 + 1 + 1 |
| 434 | = | CDXXXIV | = | 500 − 100 + 10 + 10 + 10 + 5 − 1 |
| 435 | = | CDXXXV | = | 500 − 100 + 10 + 10 + 10 + 5 |
| 436 | = | CDXXXVI | = | 500 − 100 + 10 + 10 + 10 + 5 + 1 |
| 437 | = | CDXXXVII | = | 500 − 100 + 10 + 10 + 10 + 5 + 1 + 1 |
| 438 | = | CDXXXVIII | = | 500 − 100 + 10 + 10 + 10 + 5 + 1 + 1 + 1 |
| 439 | = | CDXXXIX | = | 500 − 100 + 10 + 10 + 10 + 10 − 1 |
| 440 | = | CDXL | = | 500 − 100 + 50 − 10 |
| 441 | = | CDXLI | = | 500 − 100 + 50 − 10 + 1 |
| 442 | = | CDXLII | = | 500 − 100 + 50 − 10 + 1 + 1 |
| 443 | = | CDXLIII | = | 500 − 100 + 50 − 10 + 1 + 1 + 1 |
| 444 | = | CDXLIV | = | 500 − 100 + 50 − 10 + 5 − 1 |
| 445 | = | CDXLV | = | 500 − 100 + 50 − 10 + 5 |
| 446 | = | CDXLVI | = | 500 − 100 + 50 − 10 + 5 + 1 |
| 447 | = | CDXLVII | = | 500 − 100 + 50 − 10 + 5 + 1 + 1 |
| 448 | = | CDXLVIII | = | 500 − 100 + 50 − 10 + 5 + 1 + 1 + 1 |
| 449 | = | CDXLIX | = | 500 − 100 + 50 − 10 + 10 − 1 |
| 450 | = | CDL | = | 500 − 100 + 50 |
| 451 | = | CDLI | = | 500 − 100 + 50 + 1 |
| 452 | = | CDLII | = | 500 − 100 + 50 + 1 + 1 |
| 453 | = | CDLIII | = | 500 − 100 + 50 + 1 + 1 + 1 |
| 454 | = | CDLIV | = | 500 − 100 + 50 + 5 − 1 |
| 455 | = | CDLV | = | 500 − 100 + 50 + 5 |
| 456 | = | CDLVI | = | 500 − 100 + 50 + 5 + 1 |
| 457 | = | CDLVII | = | 500 − 100 + 50 + 5 + 1 + 1 |
| 458 | = | CDLVIII | = | 500 − 100 + 50 + 5 + 1 + 1 + 1 |
| 459 | = | CDLIX | = | 500 − 100 + 50 + 10 − 1 |
| 460 | = | CDLX | = | 500 − 100 + 50 + 10 |
| 461 | = | CDLXI | = | 500 − 100 + 50 + 10 + 1 |
| 462 | = | CDLXII | = | 500 − 100 + 50 + 10 + 1 + 1 |
| 463 | = | CDLXIII | = | 500 − 100 + 50 + 10 + 1 + 1 + 1 |
| 464 | = | CDLXIV | = | 500 − 100 + 50 + 10 + 5 − 1 |
| 465 | = | CDLXV | = | 500 − 100 + 50 + 10 + 5 |
| 466 | = | CDLXVI | = | 500 − 100 + 50 + 10 + 5 + 1 |
| 467 | = | CDLXVII | = | 500 − 100 + 50 + 10 + 5 + 1 + 1 |
| 468 | = | CDLXVIII | = | 500 − 100 + 50 + 10 + 5 + 1 + 1 + 1 |
| 469 | = | CDLXIX | = | 500 − 100 + 50 + 10 + 10 − 1 |
| 470 | = | CDLXX | = | 500 − 100 + 50 + 10 + 10 |
| 471 | = | CDLXXI | = | 500 − 100 + 50 + 10 + 10 + 1 |
| 472 | = | CDLXXII | = | 500 − 100 + 50 + 10 + 10 + 1 + 1 |
| 473 | = | CDLXXIII | = | 500 − 100 + 50 + 10 + 10 + 1 + 1 + 1 |
| 474 | = | CDLXXIV | = | 500 − 100 + 50 + 10 + 10 + 5 − 1 |
| 475 | = | CDLXXV | = | 500 − 100 + 50 + 10 + 10 + 5 |
| 476 | = | CDLXXVI | = | 500 − 100 + 50 + 10 + 10 + 5 + 1 |
| 477 | = | CDLXXVII | = | 500 − 100 + 50 + 10 + 10 + 5 + 1 + 1 |
| 478 | = | CDLXXVIII | = | 500 − 100 + 50 + 10 + 10 + 5 + 1 + 1 + 1 |
| 479 | = | CDLXXIX | = | 500 − 100 + 50 + 10 + 10 + 10 − 1 |
| 480 | = | CDLXXX | = | 500 − 100 + 50 + 10 + 10 + 10 |
| 481 | = | CDLXXXI | = | 500 − 100 + 50 + 10 + 10 + 10 + 1 |
| 482 | = | CDLXXXII | = | 500 − 100 + 50 + 10 + 10 + 10 + 1 + 1 |
| 483 | = | CDLXXXIII | = | 500 − 100 + 50 + 10 + 10 + 10 + 1 + 1 + 1 |
| 484 | = | CDLXXXIV | = | 500 − 100 + 50 + 10 + 10 + 10 + 5 − 1 |
| 485 | = | CDLXXXV | = | 500 − 100 + 50 + 10 + 10 + 10 + 5 |
| 486 | = | CDLXXXVI | = | 500 − 100 + 50 + 10 + 10 + 10 + 5 + 1 |
| 487 | = | CDLXXXVII | = | 500 − 100 + 50 + 10 + 10 + 10 + 5 + 1 + 1 |
| 488 | = | CDLXXXVIII | = | 500 − 100 + 50 + 10 + 10 + 10 + 5 + 1 + 1 + 1 |
| 489 | = | CDLXXXIX | = | 500 − 100 + 50 + 10 + 10 + 10 + 10 − 1 |
| 490 | = | CDXC | = | 500 − 100 + 100 − 10 |
| 491 | = | CDXCI | = | 500 − 100 + 100 − 10 + 1 |
| 492 | = | CDXCII | = | 500 − 100 + 100 − 10 + 1 + 1 |
| 493 | = | CDXCIII | = | 500 − 100 + 100 − 10 + 1 + 1 + 1 |
| 494 | = | CDXCIV | = | 500 − 100 + 100 − 10 + 5 − 1 |
| 495 | = | CDXCV | = | 500 − 100 + 100 − 10 + 5 |
| 496 | = | CDXCVI | = | 500 − 100 + 100 − 10 + 5 + 1 |
| 497 | = | CDXCVII | = | 500 − 100 + 100 − 10 + 5 + 1 + 1 |
| 498 | = | CDXCVIII | = | 500 − 100 + 100 − 10 + 5 + 1 + 1 + 1 |
| 499 | = | CDXCIX | = | 500 − 100 + 100 − 10 + 10 − 1 |
| 500 | = | D | = | 500 |