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1、3位数加减法计算题 100道 用时： 错误：458 287 = 214 345 = 874 493 =621 151 = 689 253 = 744 502 =893 265 = 459 265 = 743 379 =778 122 = 381 299 = 424 142 =919 219 = 435 315 = 185 401 =906 242 = 447 290 = 522 299 =746 470 = 602 379 = 606 417 =164 310 = 721 353 = 835 487 =377 208 = 672 186 = 843 230 =291 334 = 208 550
2、 = 422 448 =954 573 = 720 551 = 619 194 =314 196 = 401 496 = 829 254 =662 300 = 402 297 = 811 338 =948 777 = 766 242 = 852 116 =116 880 = 198 664 = 106 589 =902 126 = 538 276 = 295 424 =652 211 = 756 356 = 766 147 =697 204 = 504 258 = 752 265 =451 106 = 826 163 = 154 424 =846 661 = 977 435 = 949 423
3、 =839 140 = 522 299 = 685 163 =653 414 = 531 185 = 470 439 =666 390 = 160 219 = 881 675 =937 646 = 709 179 = 426 539 =970 254 = 698 139 = 877 584 =823 314 = 170 105 = 445 311 =916 128 = 122 675 = 209 351 =968 549 = 608 174 = 310 106 =288 163 = 287 362 = 454 197 =730 402 = 301 220 = 413 471 =150 333 = 733 328 = 208 748 =595 197 = 739 288 = 299 535 =585 311 = 941 596 = 732 527 =545 162 =
