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