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