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