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