1.
7 – 3 =
4
1
|
2.
4 + 6 =
10
1
|
3.
30 + 4 =
2
34
|
4.
4 + 17 =
2
21
|
5.
47 – 9 =
2
38
|
6.
43 – 23 =
2
20
|
7.
40 + 0 =
2
40
|
8.
7 – 3 =
4
1
|
9.
18 – 10 =
1
8
|
10.
46 – 18 =
2
28
|
11.
11 – 2 =
9
1
|
12.
1 – 0 =
2
1
|
13.
24 – 20 =
1
4
|
14.
29 – 22 =
7
1
|
15.
32 + 16 =
2
48
|
16.
32 – 15 =
17
2
|
17.
42 + 0 =
2
42
|
18.
43 + 6 =
49
2
|
19.
30 – 17 =
13
1
|
20.
27 + 10 =
37
2
|
1.
7 – 3 =
4
1
|
2.
4 + 6 =
10
1
|
3.
30 + 4 =
2
34
|
4.
4 + 17 =
2
21
|
5.
47 – 9 =
2
38
|
6.
43 – 23 =
2
20
|
7.
40 + 0 =
2
40
|
8.
7 – 3 =
4
1
|
9.
18 – 10 =
1
8
|
10.
46 – 18 =
2
28
|
11.
11 – 2 =
9
1
|
12.
1 – 0 =
2
1
|
13.
24 – 20 =
1
4
|
14.
29 – 22 =
7
1
|
15.
32 + 16 =
2
48
|
16.
32 – 15 =
17
2
|
17.
42 + 0 =
2
42
|
18.
43 + 6 =
49
2
|
19.
30 – 17 =
13
1
|
20.
27 + 10 =
37
2
|