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