1 59 — 24 + 6 = 1 80^8-7 = 1 23+18^3 =
2 904-10 + 3 = 2 30：10+1 = 2 25 + 73-4 =
3 56-214-7 = 3 9X1-8= 3 65-60-3 =
4 7299 + 88 = 4 68-54-1 = 4 12^3-0 =
5 14+214-7 = 5 21-13 + 88 = 5 27-12^6 =
6 85 + 12 + 6 = 6 19—16 + 77 = 6 67-7X2 =
7 10X8+11 = 7 46-4X5 = 7 2X10-2 =
8 53-564-8 = 8 12+404-5= 8 3X10X9 =
9 14 + 5X7 = 9 544-9 + 92 = 9 44 + 213 =
10 8^1-7= 10 64-9X6 = 10 6X5 + 54 =
11 41 + 5X15 = 11 76-17-4= 11 80-73 + 80 =
12 70-9X4 = 12 63 + 9X4 = 12 3X10 + 29 =
13 75-7X6 = 13 78-5X0 = 13 7X1 + 11 =
14 424-6+10 = 14 70：10+90 = 14 8X3 — 41 =
15 4X10+11 = 15 6X7-11 = 15 83-27-8 =
16 4094+42 = 16 10 + 8X9 = 16 90^10-3 =
17 19-4X4 = 17 14：2 — 2 = 17 10X10-2 =
18 52 + 20 + 19 = 18 8X10 + 19 = 18 32^8 + 89 =
19 17 + 52-48 = 19 60 + 6096 = 19 83-7X9 =
20 34+34-40 = 20 37—1694 = 20 243 — 2 = 1 63—1 = 1 8X6+20 = 1 14—1+86 =
2 12-724-8= 2 5X7+8= 2 7X8 + 39 =
3 8X3+3= 3 22 + 6X4 = 3 26 + 9X6 =
4 6X7+13 = 4 10 — 20：4 = 4 34 + 29 — 60 =
5 61-1 X2 = 5 2X7 + 63 = 5 42 小 7 + 2 =
6 6 + 6 + 93 = 6 9X9+18 = 6 82-10X5 =
7 58 + 25-79 = 7 10+164-8 = 7 20：4 + 2 =
8 40 + 8H-4 = 8 81^9 + 17 = 8 9+8X7=
9 8199 + 8 = 9 3597 + 71 = 9 5+44 — 27 =
10 2X9 + 62 = 10 4X0+4= 10 1095 + 25 =
11 11 — 60 + 6 = 11 9+3+0= 11 14 + 5X7 =
12 60-304-10= 12 33 + 4X9 = 12 43+10-24 =
13 22 + 34 + 37 = 13 9+3X4= 13 45 + 24+22 =
14 45 + 2094 = 14 24-2+18 = 14 9 + 8 — 9 =
15 36!9+12 = 15 34-154-5 = 15 2+5X6=
16 49-164-2 = 16 9 + 164-2 = 16 404-5-6 =
17 99-14-1 = 17 243 + 5 = 17 24^4 + 8 =
18 36：6 —3 = 18 494-7 + 14 = 18 100-18^2 =
19 54—7 + 9 = 19 14-94-1 = 19 20+4896 =
20 61-8X2 = 20 32 + 59-45 = 20 25：5 + 4 = 1 204-4-1 = 1 59-31-10 = 1 564-8 + 7 =
2 3X7+12 = 2 43-20-22 = 2 70-9X6 =
3 10X4-38 = 3 2X9+19 = 3 5X4-18 =
4 42 — 0 + 7 = 4 424-7 + 6 = 4 14+100910 =
5 2X1 + 10 = 5 7+5X1= 5 2 + 2197 =
6 7X2 + 76 = 6 72：9 + 49 = 6 50^5-1 =
7 39 + 50-10 = 7 52 + 39 + 8 = 7 94 — 90—3 =
8 41 + 33 + 24 = 8 24^3+92 = 8 5X8+6=
9 19 + 16 —3 = 9 0X9+9= 9 48 + 35 + 6 =
10 63小9+46 = 10 37+184-6 = 10 4X8-8=
11 354-5 + 6 = 11 24 — 20 + 2 = 11 67-9X6 =
12 97-9X3 = 12 2X4 + 51 = 12 94一28：4 =
13 22-2X8 = 13 45 + 24小4 = 13 18^2-2 =
14 644-8 + 4 = 14 324-4+12 = 14 324-4 + 10 =
15 44-4-0 = 15 2 + 45 + 50 = 15 9+7X5=
16 1X9—1= 16 364-6 + 7 = 16 814-9-2 =
17 22 + 5X1 = 17 58 — 24-2 = 17 64+11-16 =
18 164-4 + 9 = 18 3X10 + 12 = 18 2X4-16 =
19 92-65+10 = 19 7X6+6= 19 79-40-30 =
20 93-4X7 = 20 38-13-20 = 20 9X7-37 = 1 254-5-2 = 1 90 + 644-8 = 1 26 + 69-11 =
2 24：3+13 = 2 48 + 3X5 = 2 324-4-7 =
3 12 + 324-4 = 3 8+2X5= 3 7X8 + 32 =
4 81-8X9 = 4 25+14 + 29 = 4 72：8 + 19 =
5 93-104-5 = 5 3 + 30 — 5 = 5 20910 + 59 =
6 72 + 19 — 85 = 6 13 + 804-10 = 6 6X10 + 10 =
7 6X6+4= 7 40^10+49 = 7 7+49小7 =
8 37 + 28 + 19 = 8 36 + 6X9 = 8 5X9-31 =
9 1497 + 68 = 9 28 + 7X0 = 9 90^10-4 =
10 72 + 60 + 10 = 10 9 + 88-81 = 10 32 — 803 =
11 70 + 6X1 = 11 9+1 + 36 = 11 39 + 5X8 =
12 804-10-0 = 12 78-42-18 = 12 72-21^3 =
13 124-1+6 = 13 9X41-21 = 13 85-544-6 =
14 36 — 1X7 = 14 96 — 2197 = 14 8X9—44 =
15 6X4-9= 15 41 + 50-62 = 15 4X9 + 52 =
16 69—4X6 = 16 8X7 — 28 = 16 4+9X4=
17 73-26-16 = 17 64H-8-3 = 17 634-9-3 =
18 404-8 + 5 = 18 83-51-29 = 18 84-104-10 =
19 89-24-24 = 19 90 — 2496 = 19 93—42+48 =
20 10 + 1292 = 20 1694 — 6 = 20 81-3X6 = 1 57-42-1 = 1 75-53-17 = 1 21 + 36^6 =
2 63 + 35-22 = 2 92-76-2 = 2 67 + 21-28 =
3 244-8-2 = 3 35-28 + 74 = 3 59 — 9X4 =
4 85-80 + 93 = 4 4X8-23 = 4 15 + 9X8 =
5 9X4-18 = 5 51+42-89 = 5 48/8 + 90 =
6 76—41 + 17 = 6 50 + 5 + 62 = 6 14X0-0 =
7 72 + 9099 = 7 1292 + 68 = 7 2X7+44 =
8 94-75 + 61 = 8 1 + 1 + 78 = 8 0X6-0=
9 643+19 = 9 634-9-3 = 9 28+42 + 17 =
10 40小5 + 4 = 10 38-3 + 8 = 10 16X9 — 37 =
11 78 + 14-5 = 11 54 — 3294= 11 96 + 72^8 =
12 2+1小1= 12 84-9X5 = 12 9 + 88 + 3 =
13 92-78 + 20 = 13 35+13-37 = 13 35 + 454-5 =
14 78-28-46 = 14 66+1692 = 14 18 — 8：4 =
15 71+28-76 = 15 22 + 29 + 39 = 15 404-10 + 15 =
16 10X1 + 56 = 16 4-4X9= 16 85 + 29—27 =
17 10X3 + 52 = 17 65-10-29 = 17 14 + 56 + 29 =
18 12 + 304-10 = 18 24^34-4 = 18 3X5 + 13 =
19 25：5 — 4 = 19 50-324-4 = 19 61—27：3 =
20 43—40：4 = 20 5X8-5= 20 904-9-3 = 1 16+16 + 59 = 1 67-364-4 = 1 7X8-32 =
2 4599 + 5 = 2 64-5X1 = 2 7X4+19 =
3 164-8-1 = 3 5X4-4= 3 2X6+42 =
4 15 + 7X4 = 4 0X904-10 = 4 34-1 + 91 =
5 6096+17 = 5 81-214-3 = 5 92-8X10 =
6 17 — 8 + 2 = 6 27 + 62 — 88 = 6 244-4 + 6 =
7 60-124-6 = 7 2094 + 89 = 7 3X2 + 74 =
8 30 + 0X5 = 8 80-9X8 = 8 8X9 + 31 =
9 37-13 + 69 = 9 4X6-23 = 9 24：6 + 7 =
10 7X4 + 44 = 10 34 + 9-10 = 10 74-46+48 =
11 56-23-18 = 11 6X2-11 = 11 89 — 7X10 =
12 62+1^1 = 12 62-154-5 = 12 92-16^8 =
13 4X2-4= 13 42-4 + 54 = 13 30-16^8 =
14 484-8+18 = 14 56^8-1 = 14 274-3 + 9 =
15 96-54-12 = 15 45 + 60 + 6 = 15 94-70-5 =
16 24-1 + 14 = 16 244-3-2 = 16 6X4-21 =
17 45：9 + 4 = 17 18^2-17 = 17 484-6+1 =
18 304-3 + 19 = 18 43-25-8 = 18 42^7 + 31 =
19 13 + 4X8 = 19 7：7—0= 19 36 — 6X0 =
20 18 + 3 — 0 = 20 54-24-7 = 20 89-4X9 =