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