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