文档介绍：72 - 40 =
32-8 =
35-5 =
47 + 8 =
30-6 =
58-15-16 =
14 + 85 =
36-4 =
24 - 28 =
61 + 27 =
64-8 =
28-19 =
4x9 +
8x2 =
1 x 7 + 56 =
56 - 7 - 8 =
12-6 =
4x8 =
21 -=-3-7 =
9x3+5=
8-8 =
32-4 =
82-9 =
( )X 6 = 30
42-7 =
35-( ) = 7
28-7 =
( )X 8 = 48
21 -3 =
36-4 =
18-2 =
63-7 =
9x6 =
9x9 =
4x6 + 10 =
6 x 5 + 40 =
81-9-5 =
55-20- 10 =
3 x 9 + 46 =
9-3 =
9-9 =
4x7+8=
30-6 =
5x8+3x2=
14 +(8-5) =
36-4 =
80 -2x8 =
61 + 27 - 3 =
64-8 =
33 + 6x0 =
170 + 20 =
5-1 =
9x4 + 6 =
5x9 =
15-3 =
40-8 =
7x7 =
16-8 =
( )X 4 = 20
(2 + 6) x 5 =
42-6 =
61-13 + 20 =
60 + 300 =
400 + 50 =
15-5 =
(10 + 10)-5 =
38 + 26 =
9x3 =
83 - 29 =
93-8 =
42 - 1 x 5 =
5x6 =
49-7 =
18-9 =
43 - 17 =
6x9 =
180 -60 =
21 + 27 =
56 - 30 =
72 - 0 4 =
32-8 =
35-5 =
16-2 x 7 =
91 + 85 - 26 =
2x2-2 =
2x9 + 8 =
3x8-8 =
2-1 -0 =
50 + 2x8 =
14 + 11-25 =
9x5-5 =
90 - 81 + 2 =
85 - 83 - 1 =
8 x 6 + 79 =
6-2-2 =
96 -2x4 = 52 - 1 x 5 =
+ 24 4 =
+ 6x6 =
x 6 + 82 = 1x3 + 63 = 77 + 66 - 49 = 5 + 70-10 =
25 - 5 + 9 =
- 5 + 37 = 63-16 + 16 = 4x7+7= 80 + 5x7 = 51 - 30 + 5 =
9 + 40-10 =
+ 91 + 29
- 25 5 = 7+5x0=
60 - 6 + 29 =
4x3-0=
0 x 4 + 62 =
36 + 69 - 16 =
51 + 37 - 59 =
+ 24 - 3 =
1 X 8-7 =
3x0 + 48 =
6x4-19 =
+ 91 + 80
60 - 10 + 99 =
10 -1 x 8 =
9 + 36 - 9 =
12-2-2 =
30-10-1 =
8-8-0=
5x4 + 7 =
76 + 57 - 79 =
21 -=-3-7 =