文档介绍：125+25 X6
(135 + 75 )-(14 X5)
120 — 60 廿 X5
1024 -16 X3
(135 + 415 ) -5+16
1200 — 20 X720
—720 -15
(360-144) -24 X3
240+480 -30 X( 6+13 )
(120 X2+120 ) T
164-13 X5+85
330 -(65 — 50)
128 — 6 X8 -16
64 X(12 + 65 -13)
19 X96 — 962 -74
10000 — (59 + 66) X64
5940 -45 X(798 — 616)
(315 X
40 — 364) -7
12520 十8 X(121 -11)
(2010 — 906) X
(65+15)
(20 + 120 十24) X8
106 X9 — 76 X9
117 -13 + 37 X (65+35 )
540 — (148+47 ) -13
(308 — 308
-28 ) X 11 ( 238+7560
-90 ) - 14 21 X(230 — 192 -4)
19 X96 — 962 -74
10000 — (59 + 66) X64
5940 -45 X
(798 — 616)
(315 X40 — 364)—
735 X(700 — 400 -25)
1520 — (1070 + 28 X2)
9405-2940 -28 X21
920-1680
-40 -7
690+47 X52-398
148+3328 十 64-75
360 X24 -32+730
2100 -94+48 X54
51 +
(2304-2042 ) X2
3 4 2 1 5 +
(4361-716) -81
(247+18 ) X27 -25
36-720 -(360 -18)
1080 -
(63-54 )X80
(528+912 ) X5-6178
(10 + 120 -24) X5
2800 -100 + 789
(947 — 599) + 7 X64
36 X(15 — 276
-23)
(93 + 25 X21) X9
723 — (521 + 504) -25
(39 — 21) X(396 北)
507 -13 X63 + 498
384 -12 + 3 X
31
37 — ( 7+ 6) X30
1 6 X(17-8) -3
28 X(5+96 -32)
81 - (72-69 ) X9
57 X12 — 560 -35
848 — 640 -16 X12
960 -(1500 — 32 X45)
192 — (54
+ 38 )X1
(12+24+80) X50
32 X(25+125)
123 X18 — 123 X3+85
X123
25 X(24+16
) 178 X
99+178
(140-70 ) X 54
63+84 X2 -42
490 -7+24 X5
45+240 -12
15 X7+85 X7
(46-20 )X 30-90
25 X27 X4
(40 —