文档介绍：632+131=
-=
63X36 =
3004-5 =
102+20 =
450—175=
26X38 =
720 + 9 =
0+8 =
45-9-17 =
25X17=
720+0 =
480+90 =
7894—66=
360X5 =
180 + 20 =
7+3X0=
6789-789 =
32X68 =
04-90 =
45+554-5 =
8020-8000 =
56X79 =
854-5 =
4+=
125-25X2 =
64X28 =
574-3 =
+=
—=
80X30=
6304-9 =
+=
—=
60X70=
4504-5 =
+=
10—=
18X5 =
240 + 6 =
40+580 =
—5=
40X60 =
84 + 12 =
75+254-5 =
91-59 =
54X63 =
420 + 3 =
320-180=
750-78 =
25X38 =
9104-3 =
17+18=
51—4X6 =
36X19 =
10004-5 =
62-17=
600-50 =
16X60 =
75 + 15 =
600+300=
—=
500X3 =
560+4=
6000+3096 =
54—9=
0X930 =
954-1 =
7681+2309 =
-=
27X30 =
510+7 =
15 + 3+7 =
—=
12X40 =
200+4 =
439+46=
—=
10X40 =
72+4 =
200+5000 =
26—8=
12X50 =
80004-2 =
280+70=
350-70 =
15 X6 =
40004-50=
5+=
80-36=
32X30 =
904-5X3 =
+=
500-240=
5X20 =
10+10X30 =
12+12312=
-=
160X4 =
420 + 2 =
60+89=
540 — 360=
13X4 =
3004-24-5 =
215+4=
359—42=
25X4 =
774 + 8 =
8501+53799=
1000—60=
50X0X8 =
+=
86509+4736=
250—25=
704-5 =
+=
5268+29=
3X10 =
304-10 =
25+40=
86509-4736=
80X40 =
84+42 =
103 + 329=
428+471=
16—9=
45X29R
380X0X25=
1345+1490=
260—68=
700X4=1
240 + 6=
238+136=
136—70=
35X4=
18X3=
3562+4884=
45—5=
300X5=
300+4166=
190+360=
450—5+9=
35X20=
306X5