The provided image contains a series of arithmetic problems written on graph paper. Please extract all the problems and their corresponding answers, assuming each problem is an addition or subtraction problem presented in a vertical format. For each problem, identify the operation and calculate the result.

Решение:

На изображении представлены примеры на сложение и вычитание. Вот их решение:

• 386 + 1953 = 2339
• 678 + 753 = 1431
• 289 + 236 = 525
• 819 + 252 = 1071
• 683 - 275 = 408
• 745 - 378 = 367
• 451 + 136 = 587
• 786 - 676 = 110
• 459 + 130 = 589
• 523 + 357 = 880
• 464 + 186 = 650
• 357 - 223 = 134
• 754 - 187 = 567
• 426 - 183 = 243
• 290 - 199 = 91
• 431 + 154 = 585
• 795 + 346 = 1141
• 683 + 346 = 1029
• 387 + 158 = 545
• 781 - 295 = 486
• 671 - 464 = 207
• 932 - 528 = 404
• 552 - 454 = 98
• 531 - 139 = 392
• 875 - 361 = 514
• 551 + 278 = 829
• 374 - 295 = 79
• 477 - 357 = 120
• 524 + 237 = 761
• 437 - 231 = 206
• 739 - 547 = 192
• 928 - 731 = 197
• 943 - 381 = 562
• 814 - 344 = 470
• 860 - 497 = 363
• 642 - 33 = 609

Ответ: Результаты вычислений представлены выше.