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