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