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