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