1.
9 + 1 =
1
2
3
10
|
2.
9 – 9 =
4
0
2
3
|
3.
10 + 0 =
3
1
10
2
|
4.
3 – 1 =
3
1
4
2
|
5.
2 – 0 =
4
3
2
1
|
6.
10 + 0 =
1
10
2
3
|
7.
10 + 0 =
1
3
2
10
|
8.
10 – 3 =
7
3
1
2
|
9.
7 + 2 =
9
2
3
1
|
10.
1 + 8 =
3
9
1
2
|
11.
5 – 4 =
4
1
3
2
|
12.
3 – 2 =
3
4
1
2
|
13.
9 – 5 =
1
3
2
4
|
14.
8 – 1 =
2
1
7
3
|
15.
1 – 0 =
2
1
3
4
|
16.
2 + 4 =
3
6
1
2
|
17.
6 + 2 =
3
8
2
1
|
18.
8 – 0 =
8
2
3
1
|
19.
10 – 0 =
1
3
10
2
|
20.
9 + 0 =
3
1
2
9
|
1.
9 + 1 =
1
2
3
10
|
2.
9 – 9 =
4
0
2
3
|
3.
10 + 0 =
3
1
10
2
|
4.
3 – 1 =
3
1
4
2
|
5.
2 – 0 =
4
3
2
1
|
6.
10 + 0 =
1
10
2
3
|
7.
10 + 0 =
1
3
2
10
|
8.
10 – 3 =
7
3
1
2
|
9.
7 + 2 =
9
2
3
1
|
10.
1 + 8 =
3
9
1
2
|
11.
5 – 4 =
4
1
3
2
|
12.
3 – 2 =
3
4
1
2
|
13.
9 – 5 =
1
3
2
4
|
14.
8 – 1 =
2
1
7
3
|
15.
1 – 0 =
2
1
3
4
|
16.
2 + 4 =
3
6
1
2
|
17.
6 + 2 =
3
8
2
1
|
18.
8 – 0 =
8
2
3
1
|
19.
10 – 0 =
1
3
10
2
|
20.
9 + 0 =
3
1
2
9
|