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