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