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