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