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