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