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