1000未満の3桁+2桁の足し算
545 + 55 = 536 + 14 = 536 + 37 = 145 + 56 = 601 + 96 = 372 + 94 = 372 + 55 = 614 + 41 = 172 + 92 = 298 + 68 = 720 + 48 = 338 + 98 = 627 + 80 = 280 + 12 = 539 + 70 = 167 + 93 = 858 + 49 = 166 + 83 = 453 + 69 = 474 + 20 = 276 + 63 = 319 + 14 = 126 + 67 = 338 + 28 = 205 + 18 = 407 + 13 = 874 + 81 = 230 + 14 = 699 + 21 = 629 + 94 = 254 + 25 = 749 + 29 = 452 + 55 = 638 + 64 = 364 + 69 = 198 + 33 = 675 + 46 = 682 + 40 = 475 + 59 = 171 + 32 = 493 + 68 = 437 + 76 = 361 + 30 = 191 + 80 = 277 + 18 = 95 + 65 = 446 + 31 = 533 + 28 = 328 + 40 = 326 + 22 =
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