찬들의 주산 암산

21회 4 급 승 산 4 급 제 산 1 986 × 6,048 = 5,963,328 1 77,274 ÷ 159 = 486 2 48 × 39,612 = 1,901,376 2 452,315 ÷ 61 = 7,415 3 7,059 × 871 = 6,148,389 3 185,640 ÷ 364 = 510 4 270 × 5,876 = 1,586,520 4 245,440 ÷ 3,068 = 80 5 98,315 × 89 = 8,750,035 5 211,253 ÷ 721 = 293 6 5,398 × 819 = 4,420,962 6 517,731 ÷ 57 = 9,083 7 451 × 3,526 = 1,590,226 7 47,320 ÷ 280 = 16..

< 21회 > 제 4 급 가 감 산 ① ② ③ ④ ⑤ 47,231 753 5,804 19,836 584 395 2,964 64,937 -529 8,196 5,036 38,264 795 3,026 73,926 70,695 -690 1,692 64,817 109 718 -2,037 74,628 730 4,309 7,408 10,849 803 -5,491 84,065 98,714 582 8,396 75,026 731 506 5,130 91,523 463 1,068 3,716 83,947 274 -1,075 27,341 29,603 431 5,018 -16,904 396 241 -6,421 84,051 975 5,782 2,598 75,289 593 3,284..

< 19회 > 제 4 급 가 감 산 ① ② ③ ④ ⑤ 420 6,052 42,705 723 6,714 3,219 49,863 907 3,958 13,275 83,051 -320 4,206 52,487 173 795 4,817 15,624 -804 3,905 8,042 80,549 482 6,709 76,830 90,416 712 1,783 -21,834 609 283 -5,403 70,531 351 8,249 6,574 -15,638 153 -9,874 87,314 25,439 253 8,097 96,028 254 608 9,874 94,276 716 5,091 2,351 27,690 819 -4,291 39,652 69,173 902 5,643 61,..

19회 4 급 승 산 4 급 제 산 1 1,926 × 867 = 1,669,842 1 223,036 ÷ 74 = 3,014 2 428 × 8,254 = 3,532,712 2 821,950 ÷ 967 = 850 3 17 × 45,731 = 777,427 3 549,225 ÷ 7,323 = 75 4 3,408 × 109 = 371,472 4 408,816 ÷ 501 = 816 5 503 × 2,097 = 1,054,791 5 519,064 ÷ 62 = 8,372 6 20,659 × 43 = 888,337 6 293,562 ÷ 846 = 347 7 2,865 × 231 = 661,815 7 273,802 ÷ 8,053 = 34 8 3..

< 17회 > 제 4 급 가 감 산 ① ② ③ ④ ⑤ 8,146 12,768 961 5,430 32,608 85,071 309 1,305 56,083 491 741 -6,308 20,476 927 6,402 9,601 60,438 580 -6,728 63,814 20,745 912 4,268 81,546 906 293 -1,954 84,035 -534 5,187 2,348 95,024 815 9,807 84,950 67,305 -684 3,795 -43,720 178 631 8,071 79,286 109 1,605 7,520 37,265 279 -1,394 30,765 93,128 -147 1,706 90,861 532 408 8,423 41,538 -..

17회 4 급 승 산 4 급 제 산 1 95 × 73,908 = 7,021,260 1 460,192 ÷ 6,304 = 73 2 590 × 4,137 = 2,440,830 2 23,400 ÷ 156 = 150 3 1,594 × 534 = 851,196 3 287,560 ÷ 79 = 3,640 4 76,235 × 59 = 4,497,865 4 90,537 ÷ 309 = 293 5 137 × 5,803 = 795,011 5 185,886 ÷ 2,694 = 69 6 6,402 × 468 = 2,996,136 6 362,417 ÷ 517 = 701 7 37 × 31,042 = 1,148,554 7 108,286 ÷ 58 = 1,867 8..

15회 4 급 승 산 4 급 제 산 1 140 × 9,802 = 1,372,280 1 145,270 ÷ 365 = 398 2 27,695 × 73 = 2,021,735 2 189,945 ÷ 63 = 3,015 3 7,803 × 187 = 1,459,161 3 516,100 ÷ 794 = 650 4 538 × 1,658 = 892,004 4 261,580 ÷ 6,380 = 41 5 41 × 84,207 = 3,452,487 5 720,054 ÷ 981 = 734 6 1,296 × 372 = 482,112 6 307,280 ÷ 40 = 7,682 7 412 × 6,041 = 2,488,892 7 40,500 ÷ 250 = 162 8..

< 15회 > 제 4 급 가 감 산 ① ② ③ ④ ⑤ 36,795 972 6,481 49,582 147 162 8,153 52,497 -618 4,360 6,385 54,217 362 1,907 51,397 28,630 -715 1,203 -20,357 208 705 -4,091 13,052 356 5,927 7,920 70,852 457 3,852 63,924 75,128 639 3,197 18,403 934 394 3,907 98,674 572 8,407 1,049 -82,603 613 -7,384 90,287 38,175 608 5,094 79,416 785 947 -5,264 26,489 -314 3,165 4,591 63,195 708 4,16..

< 13회 > 제 4 급 가 감 산 ① ② ③ ④ ⑤ 893 2,716 48,621 342 3,541 2,716 63,724 851 1,789 15,246 79,615 -572 7,215 75,248 418 205 -4,039 90,574 -697 7,480 2,045 80,196 543 -3,401 68,790 50,872 605 4,083 83,901 250 374 6,357 39,716 210 1,237 4,802 -38,469 198 5,016 29,357 17,354 983 6,954 -93,165 973 136 -5,192 23,078 724 3,095 9,384 27,081 679 7,395 16,580 90,516 -754 1,327 50..

13회 4 급 승 산 4 급 제 산 1 274 × 7,028 = 1,925,672 1 328,240 ÷ 40 = 8,206 2 7,859 × 926 = 7,277,434 2 213,282 ÷ 306 = 697 3 47,189 × 23 = 1,085,347 3 345,156 ÷ 4,109 = 84 4 106 × 6,154 = 652,324 4 74,160 ÷ 412 = 180 5 6,230 × 350 = 2,180,500 5 93,432 ÷ 68 = 1,374 6 79 × 30,945 = 2,444,655 6 165,158 ÷ 658 = 251 7 561 × 3,972 = 2,228,292 7 350,220 ÷ 5,837 = 60..