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