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