文档介绍：396+3 + 2
25 X8 + 4
985-168 +
648+480 + 3
124-735 +7
(34 +22) +8
45+ (15+3)
(601 —246 ) +5
205 +7X862- (25-7 )
X 2
420 +(205 —198) X4
44 X12 +29
203 —135 +9
(84—4) X9+6
(65 + 250) +(18 — 13)
36
X 13 +207 +3
28 + 120 X 8
(124 -85) X 12 +2
1825 -45 + 9 X24
(270 -180) +
30
72 -12 X6+43
(59 +31) X(96 +8)
1024 -(680 +640 +8)
640 +8 — 50
800 +20 +4
4800 — 24 X (32 + 2)
26 X 4 —125 +5
860 — 20 X30
987 +3X6
96 X (28 -75 +5)
1674 -45 +9X 100
56 —(25 +17)
291 X4X5
555 X7X4
78 X3 + 9
1005 +5 + 3
726 +274 X 3
4176 +3+2
1912 X3 + 4
5614 — (3000 +
614 )
45、6024 +3+4
2800 X5+4
1089 — (400 +311 )328 +
16 X2
(100 —36) +4
275 X 6 + 3
X2
328 +172 X6
— 78)
6 X 25 + 75 X 6
X2
720 +8 — 80
718 -75 X3
(187 —24) X5
2335 — 74 X 8
5X (399 -214 )
(582 +6467 ) +7
424 X3
516 -123 +77
37 X100 -37
1865 -468 -332
347 X4-192
2762 — ( 762
451 +549 +3
4X38 — 12
34 + 306
3689 ＋ 498
169
567
X9
198
282
763
256
345 + 6
480
180
7X
9
+ 584 +731
345 +255 +5
257 X4 + 2
256 +389 +211
X2X5
369 X2 +3
258 +493 -58
45 X9 + 55
-98 X2
(741 -159 ) +6
54 +6—5
167 +45 +
-84-163
468 +28 +32
405 +9X3
456 -178 —
+ 456 +155
(321 —39) +6
84 +7 + 35 X4
540 +9 — 300
+ 8 + 320 +4
120 X3-90 X2
30 X4+60 X5
488 +4—23 X4
+ 9-18
(48+52 ) +5
100-25 X4
20+80 X3
(34+56 )
105 X2X5
800-579
(65+16 )々
230 X ( 140-132 )
24 X 5+24 X 7
(2534 -958 ) +8
792 X7
+ 9
707 - 35 X 20(120 — 103 ) X 5050 + 160 +40(58+370 ) +
(64-45 )
120-144 +18+35760 + 10 + 3895 — 19 X 5 )+7424 X5+24
X7
45 X 20 X 395 + (64-45 )48 +8 X750 + 160 +40493+25 X7
(95—95 ) +7414+20 +585+14 X 3284+16 X 5
4280 + ( 19 —11 )78 X 7+81 +9(5021 -3918 ) X 61208 -230
X5
80 +9-18(48+52 ) +5100-25 X4
20+80 X37 X (34+56 )105 X2X5
800-57 X