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