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