Ответ:
Выполняем сложение и вычитание в каждом примере.
| Первый столбец | Второй столбец | Третий столбец |
|---|---|---|
| 420 − 38 = 382 | 640 − 59 = 581 | 850 − 62 = 788 |
| 740 − 65 = 675 | 820 − 66 = 754 | 530 − 81 = 449 |
| 510 − 34 = 476 | 160 + 67 = 227 | 130 + 99 = 229 |
| 720 − 61 = 659 | 510 − 41 = 469 | 580 + 36 = 616 |
| 830 − 65 = 765 | 470 − 82 = 388 | 830 − 58 = 772 |
| 130 + 88 = 218 | 640 − 65 = 575 | 970 − 93 = 877 |
| 490 + 16 = 506 | 430 + 87 = 517 | 850 − 78 = 772 |
| 760 − 89 = 671 | 590 − 93 = 497 | 290 + 31 = 321 |
| 150 + 63 = 213 | 120 − 46 = 74 | 350 + 69 = 419 |
| 210 − 37 = 173 | 940 − 59 = 881 | 580 + 37 = 617 |
| 620 − 28 = 592 | 440 − 77 = 363 | 610 − 44 = 566 |
| 420 − 36 = 384 | 450 + 68 = 518 | 340 − 42 = 298 |
| 740 − 65 = 675 | 320 − 45 = 275 | 260 + 56 = 316 |
| 150 + 87 = 237 | 170 + 67 = 237 | 550 − 99 = 451 |
| 320 + 95 = 415 | 580 + 24 = 604 | 610 − 27 = 583 |
| 190 + 62 = 252 | 810 − 32 = 778 | 870 − 82 = 788 |
| 330 + 84 = 414 | 570 − 89 = 481 | 490 + 26 = 516 |
| 660 − 73 = 587 | 960 − 67 = 893 | 370 + 59 = 429 |
| 690 + 18 = 708 | 230 − 31 = 199 | 190 + 25 = 215 |
| 480 + 43 = 523 | 970 − 93 = 877 | 710 − 52 = 658 |
| 670 − 86 = 584 | 190 + 61 = 251 | 180 + 79 = 259 |
| 780 + 36 = 816 | 630 − 47 = 583 | 170 + 65 = 235 |
| 610 − 45 = 565 | 380 + 34 = 414 | 290 + 32 = 322 |
| 310 + 91 = 401 | 830 − 76 = 754 | 920 − 46 = 874 |
| 690 + 12 = 702 | 650 − 66 = 584 | 360 − 67 = 293 |
| 340 + 77 = 417 | 870 − 98 = 772 | 240 − 75 = 165 |
| 860 − 83 = 777 | 810 − 37 = 773 | 270 − 89 = 181 |
| 250 − 61 = 189 | 850 − 76 = 774 | 810 − 53 = 757 |
| 570 + 49 = 619 | 790 + 12 = 802 | 970 − 83 = 887 |
| 540 − 64 = 476 | 920 − 88 = 832 | 280 + 49 = 329 |
| 190 + 23 = 213 | 170 + 35 = 205 | 770 + 47 = 817 |
| 730 − 47 = 683 | 610 − 42 = 568 | 320 − 68 = 252 |
| 270 + 68 = 338 | 130 + 89 = 219 | 460 − 94 = 366 |
| 470 − 86 = 384 | 430 − 48 = 382 | 920 − 35 = 885 |
| 750 − 69 = 681 | 620 − 39 = 581 | 450 + 77 = 527 |
| 720 − 84 = 636 | 260 + 74 = 334 | 530 − 65 = 465 |
| 170 + 75 = 245 | 150 + 69 = 219 | 430 + 87 = 517 |
| 240 + 73 = 313 | 910 − 58 = 852 | 660 + 55 = 715 |
| 380 + 48 = 428 | 420 − 23 = 397 | 720 − 46 = 674 |
| 450 − 62 = 388 | 640 + 87 = 727 | 290 + 38 = 328 |
