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