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