1、一） 直接写出得数 分数_ 1862 + 404 = 3862 - 1862 = 1452 + 394 = 557 x 8 = 281 x 2 = 789 x 6 = 562 x 4 = 561 x 3 = 172 x 7 = 894 x 3 = 41 x 5 = 749 x 2 = 289 x 7 = 883 x 7 = 778 x 4 = 798 6 = 121 3 = 797 5 = 355 4 = 125 8 = 705 3 = 558 + 316 = 7558 - 1558 = 3767 + 435 = 5767 - 1767 = 105 + 273 = 4105 - 105 =29
2、11 + 709 = 484 + 307 = 1462 + 966 =933 6 = 409 4 = 110 2 = 3427 + 706 = 1692 + 32 = 6692 - 692 =4508 + 320 = 3508 - 1508 = 1552 + 686 = 7552 - 1552 = 4560 + 557 = 7560 - 1560 =二） 直接写出得数 分数_ 307 x 7 = 966 x 3 = 706 x 4 = 32 x 5 = 320 x 5 = 686 x 2 = 699 6 = 399 3 = 798 6 = 151 3 = 797 5 = 355 4 = 125
3、 8 = 705 3 = 203 5 = 557 x 8 = 281 x 2 = 789 x 6 =3962 + 281 = 4962 - 962 = 2052 + 789 =2052 - 52 = 3469 + 562 = 476 + 561 = 3148 + 894 = 3148 - 1148 = 4075 + 41 = 615 x 3 = 555 x 6 = 294 x 6 = 394 x 7 = 201 x 3 = 316 x 7 = 4075 - 75 = 4369 + 749 = 7369 - 1369 = 22 + 289 = 4022 - 22 = 4203 + 883 =62
4、03 - 203 = 1739 + 778 = 2703 + 615 =2033 + 555 = 3033 - 1033 = 1023 + 294 =2969 + 512 = 4969 - 969 = 2241 + 326 =7241 - 1241 = 7241 - 1241 = 7241 - 1241 =三） 直接写出得数 分数_404 x 8 = 394 x 7 = 201 x 3 = 316 x 5 = 435 x 3 = 273 x 3 = 709 x 7 = 307 x 6 = 966 x 3 = 706 x 4 = 32 x 5 = 320 x 5 = 686 x 2 = 557
5、x 8 = 281 x 2 = 789 x 6 = 562 x 4 = 561 x 3 = 326 2 = 264 3 = 786 3 = 29 2 = 498 3 = 184 4 = 743 5 = 444 3 = 178 7 = 661 4 = 623 2 = 753 6 = 933 6 = 409 4 = 110 2 = 374 5 = 677 2 = 485 8 = 四） 直接写出得数 分数_172 x 7 = 894 x 3 = 749 x 2 = 289 x 8 = 883 x 6 = 778 x 4 = 615 x 3 = 555 x 6 = 294 x 6 = 512 x 8
6、= 326 x 2 = 557 x 8 = 281 x 2 = 789 x 6 = 562 x 4 = 2052 - 52 = 3469 + 562 = 476 + 561 = 2476 - 476 = 2662 + 172 = 2662 - 662 =3148 + 894 = 3148 - 1148 = 4075 + 41 = 4075 - 75 = 4369 + 749 = 7369 - 1369 = 22 + 289 = 4022 - 22 = 4203 + 883 =五） 直接写出得数 分数_727 7 = 866 2 = 53 8 = 485 8 = 710 8 = 836 8 =
7、551 2 = 830 2 = 445 4 = 79 7 = 404 8 = 394 7 = 201 3 = 435 3 = 273 3 = 709 7 = 966 3 = 706 4 = 561 x 3 = 172 x 9 = 404 x 8 = 394 x 7 = 201 x 3 = 316 x 7 = 435 x 3 = 273 x 3 = 709 x 7 = 2476 - 476 = 2662 + 172 = 2662 - 662 =六） 直接写出得数 分数_307 x 7 = 966 x 3 = 706 x 4 = 32 x 5 = 320 x 5 = 686 x 2 = 699 6
8、 = 399 3 = 798 6 = 181 3 = 797 5 = 355 4 = 125 8 = 705 3 = 203 5 = 557 x 8 = 281 x 2 = 789 x 6 = 562 x 4 = 561 x 3 = 172 x 7 = 894 x 3 = 41 x 5 = 749 x 2 = 289 x 7 = 883 x 7 = 778 x 4 = 798 6 = 211 3 = 797 5 = 355 4 = 125 8 = 705 3 = 558 + 316 = 7558 - 1558 = 3767 + 435 = 5767 - 1767 = 105 + 273 = 4
9、105 - 105 =2911 + 709 = 484 + 307 = 1462 + 966 =3427 + 706 = 1692 + 32 = 6692 - 692 =七） 直接写出得数 分数_203 5 = 573 6 = 938 2 = 484 7 = 69 6 = 319 4 = 995 5 = 727 7 = 866 2 = 53 8 = 485 8 = 710 8 = 836 8 = 551 2 = 830 2 = 445 4 = 277 7 = 862 7 = 615 x 3 = 555 x 6 = 294 x 6 = 512 x 8 = 326 x 2 = 404 x 8 =
10、394 x 7 = 201 x 3 = 316 x 7 = 435 x 3 = 273 x 3 = 709 x 7 = 125 8 = 705 3 = 203 5 = 573 6 = 938 2 = 484 7 = 69 6 = 319 4 = 995 5 = 805 4 = 993 3 = 264 3 = 715 4 = 699 6 = 399 3 = 4075 - 75 = 4369 + 749 = 7369 - 1369 = 22 + 289 = 4022 - 22 = 4203 + 883 =6203 - 203 = 1739 + 778 = 2703 + 615 =2033 + 55
11、5 = 3033 - 1033 = 1023 + 294 =2969 + 512 = 4969 - 969 = 2241 + 326 =八） 直接写出得数 分数_307 x 7 = 966 x 3 = 706 x 4 = 32 x 5 = 320 x 5 = 686 x 2 = 557 x 8 = 281 x 2 = 789 x 6 = 562 x 4 = 561 x 3 = 172 x 7 = 404 8 = 394 7 = 201 3 = 435 3 = 273 3 = 709 7 = 966 3 = 706 4 = 32 5 = 320 5 = 686 2 = 557 8 = 281 2
12、 = 789 6 = 562 4 = 561 3 = 894 3 = 41 5 = 749 2 = 778 4 = 615 3 = 555 6 = 294 6 = 512 8 =2911 + 709 = 484 + 307 = 1462 + 966 =3427 + 706 = 1692 + 32 = 6692 - 692 =4508 + 320 = 3508 - 1508 = 1552 + 686 = 7552 - 1552 = 4560 + 557 = 7560 - 1560 =九） 直接写出得数 分数_894 x 3 = 41 x 5 = 749 x 2 = 289 x 7 = 883 x
13、 7 = 778 x 4 = 615 x 33 = 555 x 6 = 294 x 67 = 512 x 8 = 326 x 2 = 404 x 86 = 394 x 7 = 201 x 30 = 316 x 71 = 32 5 = 320 5 = 686 2 = 557 8 = 281 2 = 789 6 = 562 4 = 561 3 = 894 3 = 41 5 = 749 2 = 778 4 = 615 3 = 555 6 = 294 6 = 512 8 = 326 2 = 264 3 = 786 3 = 29 2 = 498 3 = 184 4 = 743 5 = 444 3 = 3
14、148 + 894 = 3148 - 1148 = 4075 + 41 = 4075 - 75 = 4369 + 749 = 7369 - 1369 = 22 + 289 = 4022 - 22 = 4203 + 883 =6203 - 203 = 1739 + 778 = 2703 + 615 =2033 + 555 = 3033 - 1033 = 1023 + 294 =十） 直接写出得数 分数_435 x 3 = 273 x 35 = 709 x 7 = 307 x 7 = 966 x 3 = 706 x 46 = 32 x 5 = 320 x 5 = 686 x 24 = 557 x
15、83 = 281 x 2 = 789 x 6 = 562 x 4 = 561 x 3 = 172 x 7 = 894 x 36 = 41 x 52 = 749 x 21 = 289 x 7 = 883 x 7 = 778 x 4 = 615 x 3 = 555 x 69 = 294 x 6 = 512 x 80 = 326 x 22 = 404 x 8 = 977 5 = 457 7 = 941 5 = 880 7 = 457 7 = 805 4 = 993 3 = 264 3 = 715 4 = 699 60 = 399 3 = 798 6 = 321 3 = 797 5 = 355 4 =
16、 十一） 直接写出得数 分数_394 x 71 = 201 x 30 = 316 x 7 = 435 x 3 = 273 x 6 = 709 x 50 = 307 x 7 = 966 x 33 = 706 x 41 = 32 x 50 = 320 x 50 = 686 x 2 = 557 x 8 = 281 x 22 = 789 x 60 = 3148 + 894 = 3148 - 1148 = 4075 + 41 = 4075 - 75 = 4369 + 749 = 7369 - 1369 = 22 + 289 = 4022 - 22 = 4203 + 883 =6203 - 203 = 1
17、739 + 778 = 2703 + 615 =2033 + 555 = 3033 - 1033 = 1023 + 294 =十二） 直接写出得数 分数_404 8 = 394 7 = 201 3 = 435 3 = 273 3 = 709 7 = 966 3 = 706 4 = 32 5 = 320 5 = 686 2 = 557 80 = 281 2 = 789 6 = 562 4 = 561 3 = 894 3 = 41 5 = 749 2 = 778 4 = 615 3 = 555 6 = 294 6 = 512 8 = 326 2 = 264 3 = 786 3 = 十三） 直接写出
18、得数 分数_562 x 4 = 561 x 30 = 172 x 7 = 894 x 3 = 41 x 50 = 749 x 20 = 289 x 7 = 883 x 7 = 778 x 40 = 615 x 30 = 555 x 60 = 294 x 6 = 512 x 80 = 326 x 2 = 181 x 70 = 264 x 3 = 786 x 3 = 29 x 2 = 498 x 3 = 184 x 4 = 181 x 70 = 十四） 直接写出得数 分数_178 7 = 661 4 = 623 2 = 753 6 = 933 60 = 409 4 = 110 2 = 374 5
19、= 677 2 = 485 8 = 977 5 = 457 6 = 941 5 = 880 7 = 457 7 = 3148 + 894 = 3148 - 1148 = 4075 + 41 = 4075 - 75 = 4369 + 749 = 7369 - 1369 = 753 x 6 = 933 x 6 = 409 x 4 = 110 x 2 = 374 x 5 = 172 x 7 = 十五） 直接写出得数 分数_562 x 4 = 561 x 3 = 172 x 7 = 894 x 30 = 41 x 5 = 749 x 2 = 289 x 7 = 883 x 70 = 778 x 40
20、= 615 x 3 = 555 x 6 = 294 x 60 =404 80 = 394 7 = 201 3 = 435 30 = 273 3 = 709 7 = 966 30 = 706 4 = 32 5 = 320 5 = 686 2 = 557 8 = 281 20 = 789 6 = 562 4 = 561 3 = 894 3 = 41 5 = 749 2 = 778 4 = 615 3 = 555 6 = 294 60 = 512 8 = 十六） 直接写出得数 分数_435 x 30 = 273 x 30 = 709 x 70 = 307 x 70 = 966 x 3 = 706 x
21、 4 = 32 x 5 = 320 x 50 = 686 x 2 = 557 x 80 = 281 x 2 = 789 x 6 = 562 x 4 = 561 x 30 = 172 x 7 = 22 + 289 = 4022 - 22 = 4203 + 883 =6203 - 203 = 1739 + 778 = 2703 + 615 =2033 + 555 = 3033 - 1033 = 1023 + 294 =966 3 = 706 40 = 32 50 = 320 50 = 686 20 = 557 8 = 281 20 = 789 6 = 562 4 =十七） 直接写出得数 分数_28
22、9 x 7 = 883 x 7 = 778 x 4 = 615 x 3 = 555 x 6 = 294 x 6 = 561 30 = 894 3 = 41 5 = 749 20 = 778 4 = 615 30 = 555 6 = 294 60 = 512 8 =4075 - 75 = 4369 + 749 = 7369 - 1369 = 22 + 289 = 4022 - 22 = 4203 + 883 =6203 - 203 = 1739 + 778 = 2703 + 615 =435 3 = 273 30 = 709 7 = 十八） 直接写出得数 分数_ 966 3 = 706 4 =
23、32 5 = 320 5 = 686 2 = 557 8 = 281 2 = 789 6 = 562 4 = 749 2 = 778 4 = 615 3 = 555 6 = 294 6 = 512 8 = 326 2 = 264 3 = 786 3 = 562 x 4 = 561 x 3 = 172 x 7 = 615 x 3 = 555 x 6 = 294 x 6 = 512 x 8 = 326 x 2 = 181 x 7 = 264 x 3 = 786 x 3 = 29 x 2 =966 3 = 706 4 = 32 5 = 320 5 = 686 2 = 557 8 = 281 2 =
24、789 6 = 562 4 =十九） 直接写出得数 分数_ 966 3 = 706 4 = 32 50 = 320 50 = 686 2 = 557 8 = 281 20 = 789 6 = 562 4 = 749 2 = 778 40 = 615 3 = 555 60 = 294 6 = 512 8 = 326 2 = 264 3 = 786 3 = 562 x 4 = 561 x 30 = 172 x 7 = 615 x 3 = 555 x 6 = 294 x 60 = 512 x 80 = 326 x 20 = 181 x 7 = 264 x 3 = 786 x 30 = 29 x 2
25、=966 30 = 706 4 = 32 5 = 320 5 = 686 2 = 557 8 = 281 2 = 789 6 = 562 4 =二十） 直接写出得数 分数_ 22 + 289 = 4022 - 22 = 4203 + 883 =6203 - 203 = 1739 + 778 = 2703 + 615 =2033 + 555 = 3033 - 1033 = 1023 + 294 =743 x 5 = 444 x 3 = 178 x 7 = 522 x 8 = 661 x 4 = 623 x 2 = 966 3 = 706 4 = 32 5 = 320 5 = 686 2 = 55
26、7 80 = 281 2 = 789 6 = 562 4 = 561 3 = 894 3 = 41 5 = 289 x 7 = 883 x 7 = 778 x 4 = 615 x 3 = 555 x 69 = 294 x 6 = 512 x 80 = 326 x 22 = 404 x 8 = 二十一） 直接写出得数 分数_ 281 2 = 789 6 = 562 4 = 749 2 = 778 4 = 615 3 = 555 6 = 294 6 = 512 8 = 326 2 = 264 3 = 786 3 = 562 x 4 = 561 x 3 = 172 x 7 = 615 x 3 = 5
27、55 x 6 = 294 x 6 = 二十二） 直接写出得数 分数_307 x 7 = 966 x 3 = 706 x 4 = 32 x 5 = 320 x 5 = 686 x 2 = 557 x 8 = 281 x 2 = 789 x 6 = 562 x 4 = 561 x 3 = 172 x 7 = 404 8 = 394 7 = 201 3 = 435 3 = 273 3 = 709 7 = 966 3 = 706 4 = 32 5 = 320 5 = 686 2 = 557 8 = 281 2 = 789 6 = 562 4 = 561 3 = 894 3 = 41 5 = 749 2
28、 = 778 4 = 615 3 = 555 6 = 294 6 = 512 8 =2911 + 709 = 484 + 307 = 1462 + 966 =3427 + 706 = 1692 + 32 = 6692 - 692 =4508 + 320 = 3508 - 1508 = 1552 + 686 = 7552 - 1552 = 4560 + 557 = 7560 - 1560 =二十三） 直接写出得数 分数_ 966 3 = 706 4 = 32 5 = 320 5 = 686 2 = 557 8 = 281 2 = 789 6 = 562 4 = 749 2 = 778 4 = 615 3 = 555 6 = 294 6 = 512 8 = 326 2 = 264 3 = 786 3 = 562 x 4 = 561 x 3 = 172 x 7 = 3427 + 706 = 1692 + 32 = 6692 - 692 =4508 + 320 = 3508 - 1508 = 1552 + 686 = 7552 - 1552 = 4560 + 557 = 7560 -
