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