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