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