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