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