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