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