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