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