1、(5 + 6) 2 (3 + 2) 1 (4 - 10) 2(4 + 10) 6 (40 + 8) 8 (7 + 7) 2(8 + 10) 10 8 + 15 3 7 + 10 58 - 10 7 2 - 9 7 6 + 5 418 6 3 (6 - 3) 2 (9 + 4) 62 8 7 (7 - 6) 4 (9 + 8) 87 6 7 (7 + 9) 7 (3 + 4) 97 (9 - 3) 10 + 2 6 3 - 5 39 9 + 4 5 + 9 8 4 - 10 95 9 + 6 2 + 63 9 42 - 60 564 8 + 4 (3 + 29) 4 (5 + 55) 1054
2、6 + 5 5 + 8 2 3 + 54 936 4 + 9 5 - 7 7 6 + 4 83 4 + 6 (16 + 8) 4 (2 + 8) 64 (9 - 3) (26 + 9) 5 1 + 2 58 (5 - 7) 5 + 3 6 3 + 8 16 (5 - 3) 3 + 9 1 (9 - 1) 49 (4 - 6) (8 + 9) 4 (5 - 8) 41 4 + 8 (8 + 5) 9 7 - 25 58 8 + 4 46 - 10 3 7 - 24 672 9 + 8 57 - 6 7 5 + 36 48 8 + 9 (23 - 7) 2 (4 + 7) 47 6 + 8 (5
3、+ 4) 1 2 + 5 98 10 + 10 (29 + 3) 4 9 + 3 2(6 + 4) - 4 10 + 4 3 (3 + 9) 73 + (2 - 7) 3 + 10 2 (9 + 7) 12 + (4 - 3) 9 + 9 8 1 - 8 83 + 4 + 1 (8 + 1) 9 8 - 28 7(9 - 4) + 9 17 - 4 2 (88 - 7) 91 - 9 2 2 + 4 6 (9 + 6) 549 - 3 7 (54 + 26) 10 8 + 81 9(4 + 6) 2 4 + 2 6 7 + 9 24 + 1 9 9 + 9 3 (6 + 6) 43 + 4 1
4、 (2 + 8) 10 (5 + 7) 9(28 + 8) 4 (4 + 6) 2 (9 + 10) 10(17 - 2) 3 9 - 10 3 (15 - 8) 77 - 20 4 10 + 3 7 (18 - 9) 740 10 6 5 + 30 6 7 + 42 63 2 6 (25 + 20) 5 4 + 18 22 5 4 5 + 56 7 (24 + 8) 82 4 10 2 + 9 2 (8 + 2) 55 4 6 (6 + 2) 2 (7 + 10) 97 5 5 (12 - 9) 5 4 + 7 96 5 2 13 - 2 4 2 + 7 74 2 1 9 + 8 8 9 +
5、 9 856 (18 - 9) (9 + 3) 6 (3 + 5) 88 2 + 6 (3 + 1) 2 5 + 8 42 7 + 7 1 + 7 4 2 + 8 26 4 + 8 4 + 6 6 (8 + 5) 37 8 + 7 (10 + 2) 6 (6 - 2) 51 5 + 1 (8 - 8) 7 2 + 9 54 3 + 6 (5 + 9) 3 5 + 4 97 7 - 8 (5 + 1) 6 (3 + 4) 430 3 - 9 (50 + 20) 10 (5 + 6) 16 2 - 6 4 + 2 2 8 7 41 5 + 6 7 + 7 1 8 3 62 4 + 6 (10 +
6、5) 5 8 2 75 4 + 8 (4 + 1) 9 1 3 81 9 + 4 (10 + 2) 2 3 1 37 8 + 4 8 + 4 9 9 2 372 9 + 1 5 + 12 6 4 8 28 1 - 3 3 + 3 3 3 2 24 4 + 6 (9 + 2) 1 9 5 86 8 + 2 49 - 3 6 30 3 648 8 + 7 23 - 4 3 10 2 356 7 + 5 (28 + 21) 3 8 3 + 96 3 + 5 (4 + 9) 7 7 5 + 2(8 + 8) + 6 38 + 6 4 5 (8 - 1)3 + (12 - 9) 6 + 3 1 5 9 + 87 + 5 + 6 (5 + 3) 5 5 10 + 5