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