文档介绍：(93 + 25x21)x9
723 - (521 + 504)-25
(39 - 21)x(396-6)
507-13x63 + 498
384-12 + 3x31
[37— ( 7+6 ) ] x30
16x [(17-8)
(93 + 25x21)x9
723 - (521 + 504)-25
(39 - 21)x(396-6)
507-13x63 + 498
384-12 + 3x31
[37— ( 7+6 ) ] x30
16x [(17-8)4-3]
28x(5+96-32)
81-[ ( 72-54 ) x9]
178x99+178
123x18 - 123x3+85x123 25x ( 24+16 )
(140-70 ) x54
63+84x2-42
490-7+24x5
45+240-12
15x7+85x7
(46-20 ) x 30-90
108 - ( 83 + 360-60 )
(420 + 48 )-( 375 - 345 )
290 - ( 34x3+99 )
142 - 54-9+14
75x4x25
16x76 - 76x6
720+36+2
99x53+53
450 - 2x ( 16 + 9 )
(140-70 ) x54
63+84x2+42
490+7+24x5
26x6-110
15x7+85x7
(46-20 ) x30-90
(40 - 4 ) x25
2400+80 - 14x2
108 - ( 83 + 360+60 )
245 - ( 45+39 )
125x ( 8x4 ) x5
41x25-25
420+ ( 205 - 198 ) x4
460+ ( 29 - 18-3 )
(960 - 400 ) +70
45+240-12
124+78+22
100-35-25
108 - ( 83 + 360+60 )
(40 - 4 ) x25 2400+80 - 14x2
142 - 54+9+14
(420 + 48 ) + ( 375 - 345 ) 290 - ( 34x3+99 )
16x76 - 76x6 99x53+53
450 - 2x ( 16 + 9 )
426-279+3
98-19x4+62
51+121x7
84x3-136+8
(32+28 ) x6
325+13x ( 266-250 )
55+720+ ( 40-35 )
(220-180 ) +8
36x ( 28+7+23 )
106x6+3
24+8x302
52+4x30
36x4 + 27x3
(135 - 25 ) +40x6
18x ( 79 - 58 ) +27
82+2+59
32+8+125
8x5+32+4
81+3+3x11
135+15+26
107-35x3
206x3-128+4
(482-42 ) +22-17
57+3-12
31x13-228-19
(156 + 224+32 ) x80
345+( 128-531+9 )
776- ( 73x6+152 )
80+2+100+5
45-203+4
140-20x5+25
20x30+2040
25x(30+10)
800+40-400+40
600+(120+60)
(26+14)x70
6x10-(21+29)
25x(22+26x3)
80+(32+8)x300
3000-((32+8)x30]
30x(169-(60+9)]
320-(120+25x4)