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