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