文档介绍：35X12=
359 + 3=
567+284=
602-394=
46X22=
606-208=
6034-7=
198+303=
426 + 4=
23X37=
46X58=
326X5=
4824-8=
3704-7=
784-685=
76X15 =
486+2=
6074-5=
9154-3=
900-807=
560+4=
458+542=
423 + 3=
87X19=
3624-6=
5254-3 =
2544-5 =
1924-4=
602 + 7 =
839+9 =
726 + 6=
51X16=
78X22 =
4164-4=
8234-8 =
63X43=
3674-4=
795 + 5=
42X53=
15X82=
79X97=
28X32 =
54X25=
48X61 =
39X42 =
1684-8=
3704-5=
6404-7=
19X64=
4704-9=
5224-6=
3124-7=
570： 8=
8104-9=
6604-5=
8044-7=
462 + 3 =
780+4=
729 + 9=
624+6 =
2500+300 =
156-97=
386+479=
321X12 =
125X23 =
18X250=
52X49=
34X54=
106X51 =
48X34=
82X16=
45X93 =
66X65=
55X18=
75X26=
8164-8 =
79X29=
43X36=
62X71=
38X44=
8654-5=
984+8=
4374-3=
413749=
?31X81=
97X22=
57X21=
42X79=
5. 5-4. 7=
6. 6+2. 6=
6. 4-2. 8=
1-0. 5=
0. 3+0. 6=
1. 5+0. 9=
3. 2-1. 5=
5. 3+2. 7=
8+2. 18=
2. 7+2. 3=
10. 8-2. 8=
7. 2-3. 2=
14. 6+16. 74=
10. 7-2. 8=
15. 15-8. 8=
1-0. 3=
4. 8+7. 7=
5-1. 8=
12. 45+3. 6=
9. 4+6. 42=
27X16=
39X66=
17X51 =
43X22=
1754-5=
4604-8=
84054-7=
9160 9 4=
3664+6=
2360 + 4=
18X34=
19X25 =
27X32 =
45X12 =
33X12=
32X69=
23X31=
142X23=
32X37=
45X12=
114X25=
433X36=
25X43=
302X24=
59X27=
42098=
79398=
8164-4=
14X53=
15X4=
26X96=
55X26=
2874-7=
4484-2=
2174-7=
3064-6=
41X43=
17X15=
7X7+3=
55X16=
81X47=
5054-5=
35X92=