1000未満の3桁+2桁の足し算
621 + 33 = 507 + 89 = 304 + 19 = 328 + 11 = 555 + 94 = 160 + 90 = 661 + 43 = 402 + 96 = 139 + 54 = 239 + 89 = 440 + 92 = 262 + 22 = 163 + 82 = 620 + 79 = 280 + 44 = 485 + 17 = 332 + 82 = 319 + 17 = 354 + 52 = 506 + 69 = 492 + 25 = 386 + 50 = 380 + 74 = 958 + 30 = 299 + 29 = 457 + 11 = 539 + 16 = 436 + 87 = 220 + 15 = 412 + 12 = 158 + 29 = 602 + 85 = 206 + 35 = 875 + 52 = 112 + 96 = 182 + 92 = 363 + 38 = 678 + 44 = 246 + 39 = 657 + 62 = 339 + 35 = 600 + 40 = 401 + 41 = 571 + 31 = 235 + 83 = 294 + 45 = 184 + 87 = 293 + 23 = 336 + 49 = 530 + 67 =
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