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