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