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