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