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