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