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