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