内容正文:
练习(一) 372 × 58 = 732 × 64 = 549 × 10 = 153 × 61 = 361 × 72 = 504 × 15 = 573 × 64 = 288 × 53 = 239 × 48 = 361 × 49 = 378 × 31 = 882 × 91 = 练习(二) 685 × 34 = 532 × 17 = 150 × 30 = 955 × 40 = 477 × 67 = 956 × 35 = 391 × 26 = 568 × 84 = 493 × 48 = 463 × 34 = 346 × 19 = 127 × 35 = 练习(三) 520 × 45 = 424 × 63 = 244 × 85 = 589 × 85 = 676 × 74 = 768 × 63 = 598 × 79 = 897 × 98 = 645 × 82 = 765 × 72 = 247 × 25 = 405 × 18 = 练习(四) 499 × 72 = 482 × 91 = 371 × 14 = 812 × 53 = 720 × 40 = 879 × 37 = 932 × 11 = 648 × 50 = 943 × 34 = 935 × 92 = 956 × 75 = 335 × 14 = 练习(五) 932 × 87 = 868 × 45 = 574 × 40 = 494 × 92 = 189 × 16 = 353 × 42 = 673 × 50 = 685 × 41 = 172 × 55 = 513 × 37 = 473 × 65 = 310 × 68 = 练习(六) 241 × 58 = 344 × 54 = 539 × 70 = 486 × 53 = 468 × 92 = 130 × 71 = 405 × 95 = 187 × 73 = 465 × 25 = 824 × 63 = 803 × 95 = 790 × 59 = 练习(七) 297 × 30 = 211 × 69 = 954 × 35 = 435 × 28 = 253 × 73 = 356 × 40 = 472 × 63 = 452 × 41 = 623 × 72 = 761 × 45 = 157 × 14 = 460 × 87 = 练习(八) 827 × 82 = 427 × 73 = 121 × 29 = 976 × 99 = 651 × 89 = 165 × 52 = 562 × 60 = 932 × 85 = 663 × 86 = 903 × 83 = 703 × 62 = 713 × 51 = 练习(九) 957 × 10 = 586 × 85 = 107 × 29 = 519 × 84 = 886 × 95 = 867 × 57 = 885 × 43 = 761 × 20 = 538 × 65 = 490 × 26 = 159 × 83 = 316 × 64 = 练习(十) 390 × 58 = 269 × 65 = 849 × 26 = 604 × 98 = 356 × 17 = 460 × 47 = 615 × 19 = 685 × 83 = 751 × 56 = 639 × 24 = 447 × 51 = 283 × 74 = 参考答案 练习(一) 练习(二) 21576 46848 5490 23290 9044 4500 9333 25992 7560 38200 31959 33460 36672 15264 11472 10166 47712 23664 17689 11718 80262 15742 6574 4445 练习(三) 练习(四) 23400 26712 20740 35928 43862 5194 50065 50024 48384 43036 28800 32523 47242 87906 52890 10252 32400 32062 55080 6175 7290 86020 71700 4690 练习(五) 练习(六) 81084 39060 22960 13978 18576 37730 45448 3024 14826 25758 43056 9230 33650 28085 9460 38475 13651 11625 18981 30745 21080 51912 76285 46610 练习(七) 练习(八) 8910 14559 33390 67814 31171 3509 12180 18469 14240 96624 57939 8580 29736 18532 44856 33720 79220 57018 34245 2198 40020 74949 43586 36363 练习(九) 练习