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