Вариант 3.4. 1) 80951 + 6 - 37812 : 92 = 172 : 258 = 294; = 401 2) 9 - 8994 - 10953 + 7 = 69595 - 84882 : 28294; = 402 3) 12078 : 3 - 21750 = 6 + 4 = 2931 : 5862; = 403 4) 69993 : 99 : 7 = (4739 + 398 - 4797) = 85; = 404 5) 84 + 15 * 27 - (65 - 61 + 89288) = 1063; = 405 6) (23573 - 8999) : 21 * 7 = (338 + 9) : 29; = 406 7) 4 * (1830 - 1807) - 88 + (100000 - 14564) = 212; = 407 8) 427 - 52 = (1818 + 22384 : 2798) = 3652 + 7. = 408

Вариант 3.4.

1. \( 80951 + 6 - 37812 : 92 = 80957 - 411 = 80546 \)
2. \( 9 - 8994 - 10953 + 7 = 69595 - 84882 : 28294 \)
3. \( 12078 : 3 - 21750 = 4026 - 21750 = -17724 \)
4. \( 69993 : 99 : 7 = 707 : 7 = 101 \)
5. \( 84 + 15 * 27 - (65 - 61 + 89288) = 84 + 405 - (4 + 89288) = 489 - 89292 = -88803 \)
6. \( (23573 - 8999) : 21 * 7 = 14574 : 21 * 7 = 694 * 7 = 4858 \)
7. \( 4 * (1830 - 1807) - 88 + (100000 - 14564) = 4 * 23 - 88 + 85436 = 92 - 88 + 85436 = 4 + 85436 = 85440 \)
8. \( 427 - 52 = (1818 + 22384 : 2798) = 375 \)