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