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