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