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