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