三位数的加减法 200 道题(一)311 + 119 =403 + 279 =169 + 773 =154 + 607 =108 + 363 =944 - 434 =883 - 721 =363 + 338 =197 + 302 =141 + 545 =·····························································436 + 143 =174 + 580 =255 - 162 =387 + 533 =186 - 173 =323 + 316 =125 + 785 =142 + 816 =689 - 185 =834 - 126 =381 + 235 =571 - 492 =345 + 371 =232 + 195 =723 + 232 =427 + 341 =302 + 150 =875 - 803 =850 - 325 =492 + 297 =289 + 400 =349 + 362 =885 - 344 =493 - 253 =896 - 845 =769 + 176 =244 + 115 =961 - 837 =660 - 449 =537 + 128 =·······················································································································································································ˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉˉ····················································································································································································································································三位数的加减法 200 道题(二)877 - 733 =174 - 137 =128 + 711 =665 - 569 =205 + 112 =454 + 285 =456 + 332 =518 - 228 =680 - 354 =865 - 523 =479 + 435 =236 + 591 =613 - 230 =254 + 438 =672 - 461 =718 - 103 =402 - 192 =394 + 558 =174 + 492 =227 + 629 =7...
