1、(1) 989 - 423 = 566(2) 279 - 182 = 97(3) 433 + 726 = 1159(4) 691 - 155 = 536(5) 602 + 196 = 798(6) 720 + 332 = 1052(7) 445 + 251 = 696(8) 959 + 495 = (15)792 + 146 = 938(16)231 - 108 = 123(17)952 - 726 = 226(18)165 + 241 = 406(19)471 + 185 = 656(20)395 + 291 = 686(21)357 - 182 = 175(22)759 + 450 = (
2、28)393 - 208 = 185(29)952 + 249 = 1201(30)966 - 252 = 714(31)690 + 762 = 1452(32)794 + 532 = 1326(33)360 - 224 = 136(34)877 - 482 = 395(35)703 - 560 = 1454(9) 980 - 412 = 568(10)422 + 360 = 782(11)292 - 255 = 37(12)539 - 531 = 8(13)952 + 234 = 1186(14)335 + 441 = 7761209(23)851 + 468 = 1319(24)939 -
3、 155 = 784(25)488 - 257 = 231(26)879 + 667 = 1546(27)482 - 285 = 197143(36)788 + 459 = 1247(37)335 - 277 = 58(38)898 + 184 = 1082(39)377 - 124 = 253(40)122 + 160 = (1) 699 - 547 = 152(2) 171 + 106 = 277(3) 896 - 478 = 418(4) 348 + 222 = 570(5) 343 - 138 = 205(6) 494 - 370 = 124(7) 981 - 643 = 338(8)
4、 631 - 399 = (15)284 - 154 = 130(16)989 + 449 = 1438(17)573 + 909 = 1482(18)951 - 278 = 673(19)952 + 748 = 1700(20)953 + 679 = 1632(21)480 - 460 = 20(22)210 + 524 = (28)588 + 717 = 1305(29)782 - 112 = 670(30)318 + 613 = 931(31)648 + 365 = 1013(32)665 - 440 = 225(33)109 - 106 = 3(34)619 - 144 = 475(3
5、5)107 - 102 = 232(9) 826 + 140 = 966(10)483 + 911 = 1394(11)453 + 203 = 656(12)995 + 912 = 1907(13)544 + 935 = 1479(14)451 - 142 = 309734(23)513 + 566 = 1079(24)214 - 205 = 9(25)789 - 650 = 139(26)138 + 917 = 1055(27)750 - 181 = 5695(36)645 - 521 = 124(37)902 - 173 = 729(38)738 + 747 = 1485(39)928 -
6、 773 = 155(40)568 - 137 = 431(1) 559 + 514 = 1073(2) 624 - 544 = 80(3) 849 - 494 = 355(4) 893 - 493 = 400(5) 322 - 311 = 11(6) 384 + 325 = 709(7) 486 - 145 = 341(8) 713 - 314 = (15)285 - 246 = 39(16)616 - 443 = 173(17)842 - 188 = 654(18)516 - 288 = 228(19)616 - 554 = 62(20)777 - 503 = 274(21)520 - 1
7、01 = 419(22)609 + 206 = (28)862 - 422 = 440(29)463 + 713 = 1176(30)944 - 469 = 475(31)701 + 548 = 1249(32)948 + 996 = 1944(33)452 - 296 = 156(34)587 + 333 = 920(35)764 + 334 = 399(9) 890 + 779 = 1669(10)141 + 769 = 910(11)869 - 462 = 407(12)642 - 240 = 402(13)657 - 506 = 151(14)358 + 173 = 531815(23
8、)213 + 219 = 432(24)187 - 124 = 63(25)279 - 201 = 78(26)546 - 447 = 99(27)726 + 369 = 10951098(36)292 + 906 = 1198(37)906 + 298 = 1204(38)854 + 579 = 1433(39)887 - 751 = 136(40)982 + 651 = (1) 134 + 947 = 1081(2) 383 + 412 = 795(3) 488 + 890 = 1378(4) 705 + 666 = 1371(5) 574 + 593 = 1167(6) 506 - 35
9、5 = 151(7) 313 - 200 = 113(8) 771 + 193 = (15)670 - 409 = 261(16)209 - 125 = 84(17)235 + 737 = 972(18)243 + 589 = 832(19)573 + 544 = 1117(20)234 + 608 = 842(21)156 - 101 = 55(22)337 - 189 = (28)893 - 520 = 373(29)682 - 568 = 114(30)412 + 721 = 1133(31)513 + 679 = 1192(32)961 + 546 = 1507(33)853 + 37
10、0 = 1223(34)171 - 117 = 54(35)888 + 601 = 964(9) 761 + 295 = 1056(10)144 - 106 = 38(11)777 + 867 = 1644(12)349 - 230 = 119(13)558 - 421 = 137(14)309 + 308 = 617148(23)409 - 191 = 218(24)844 - 271 = 573(25)639 - 536 = 103(26)720 + 215 = 935(27)179 + 214 = 3931489(36)265 - 121 = 144(37)572 + 876 = 144
11、8(38)717 + 813 = 1530(39)620 + 755 = 1375(40)446 - 446 = (1) 350 - 181 = 169(2) 855 + 995 = 1850(3) 612 - 379 = 233(4) 875 + 990 = 1865(5) 451 - 205 = 246(6) 611 - 480 = 131(7) 612 + 623 = 1235(8) 900 + 655 = (15)146 - 128 = 18(16)899 + 393 = 1292(17)744 + 727 = 1471(18)669 + 162 = 831(19)358 + 215
12、= 573(20)844 - 287 = 557(21)994 - 510 = 484(22)385 + 899 = (28)852 + 957 = 1809(29)332 + 184 = 516(30)254 + 180 = 434(31)744 - 489 = 255(32)939 - 132 = 807(33)444 + 734 = 1178(34)306 - 133 = 173(35)555 + 924 = 1555(9) 555 - 317 = 238(10)833 - 752 = 81(11)279 + 752 = 1031(12)422 - 237 = 185(13)833 - 171 = 662(14)859 + 734 = 15931284(23)126 - 110 = 16(24)223 + 461 = 684(25)432 - 184 = 248(26)134 - 119 = 15(27)528 + 185 = 7131479(36)986 - 486 = 500(37)580 - 181 = 399(38)620 - 428 = 192(39)130 - 128 = 2(40)446 - 186 = 260