文档介绍：384 + 16 X 680
25 488+137+263+22
125 32
300 — 2730 +91
26
616 +336 ) +28
39 X120 +
405 +15+5 X15
15
58 X32+42 X32
1792 +32 X
364+812 +28
X26
108 X(339 - 293)
125 X74-125
652 +14 X28
17860 +38 X208
304
27-486
14706-25 X307
325 X ( 946 + 86 )
935 +
(704-693 )
+11 X170
64 + 36X18 (212 +138) ^50 396
894 +(420 +70)
18
800 — 400 +25
3900 +26 X
250 X
11 X ( 703+307 ) ( 9200 — 140 ) +15 48-134
3375 X54 +9
110 X22+101 X42
6138 — 138 X
324-118 ) X15
52
48 X53+53 X52
104 X24 +
2242 +(711 -673)
284+26 X103
12
805 +23 X28
(324-118 ) X15
900 +(288 +16)
(502-298 ) +
125 X16+25
51
298 -145 -55
49 X14 + 14X
205 X15 + 199
1280 + (128 X2)
36 + 67 X
3108 +42 X25
3304 +(681 -625)
876 + 163 X18
1500 - 25 -
150
49
577-(256+177)
3051 + 27 X
362+76+238+144
9
106 X78-6 X78
54
900-423 X2
3375 X54 +
48 X 53+53 X52
11 X (703+307 )
24 X 78-68
3375 +9 X
20 X
55+45
75 X12+25 X12
156-156 +39
68 X72+28 X
68
728 凶1 X36
326 X5 — 26 X5
7344 +36 X250
256 X36 +9
155 )
72 X38 + 38 X28
855 — (230 +
6138 — 138 X4
134
650 +25 X4
678 + 56-78 + 144
2525 +25 X(342 — 293)
250 X48 —
3200 — 888 +
78 X88 + 22 X88
4
43 x(421 + 1679)
880 +20 X
900-48 X15
16
(2706-774 ) +23
860 — 272 +
13400 -67 X18
11
53 X17-47X17
(802+208 ) X
(7400 —140) +15
6
384+165+26
1300 -300