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