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