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