文档介绍:: .
6 X 10-(21+29)
3000-[(32+8) X 30]
36 - [(3+6) X 2] (40+180 - 30) X 2 800-(70 X 6+180)
5 X 121+79 X 5
39 X 8-6 X 39
125 X( 8+4)
64 X 9-14 X 9
48 X 101-48
79 X 32+79 X 68
(75 + 25廿)—40
65 X 50+35 X 50
125X47 — 47X25
25 X (22+26 X 3)
30 X [169-(60+9)]
180 - (36 - 12)+6
(240+180) - (30 X 2)
65 X (40+20 X 3)
45 X 6+35 X 6
326 X 78-326 X 68
12 X( 40-5)
23 X 134-34 X 23
65 X 5+35 X 5
67 X 101-67
2800-25X4 + 80
2 X 70+38 X 70
340X(120 — 40^8)
80 - (32+8) X 300
320-(120+25 X 4)
450 - 15+10 X 3
800-800 - 80 X 30
36+360 -12
67 X 5-37 X 5
120 X 90-110 X 90
5 X 27+63 X 5
68 X 48+68 X 52
49 X 25 X 8
256 X 7-56 X 7
(380 — 80X4) -50
4X(25 X5+25X28)
45 X(720 — 1957 -19)
86+[4500+(2088 -36)-] 120-36 X 4 - 18+35 (58+37 ) - (64-9 X 5)
.(80 20+80)詔
360 一40+10
40 X20-200
8222+59 3228+125 8 1 5+32 2 4
8222+59 3228+125 8 1 5+32 2 4
(284+16) 1 (512-8208 218) 120-36 ><4218+35
(350-80 ) 29
500X6-(50 1-80)
(45 + 38 - 16) X24
(845- 1513) 26
(58+37 ) 2 (64-9 >5)
812-700 ( 9+31111)
(80-25) X2
288^(26- 14) X8]
864珥(27 -23) X12]
[64 -( 87 - 42) ] 15
4502 (84-48] ) 22
178-145 弋 >6+42
(135-72 )2 7
28 1( 246 2 6-32)
106 1 6 2 3
36 14 + 27 1 3
(33