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