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