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