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