1.
7 – 4 =
1
3
|
2.
25 + 3 =
2
28
|
3.
15 – 3 =
12
1
|
4.
50 – 24 =
26
2
|
5.
45 + 2 =
47
2
|
6.
23 + 8 =
2
31
|
7.
31 – 10 =
21
2
|
8.
6 – 4 =
1
2
|
9.
12 – 5 =
7
1
|
10.
17 – 4 =
1
13
|
11.
22 – 3 =
19
2
|
12.
15 + 11 =
2
26
|
13.
37 – 20 =
17
2
|
14.
8 – 8 =
0
2
|
15.
32 – 4 =
28
2
|
16.
14 – 4 =
1
10
|
17.
2 – 0 =
1
2
|
18.
38 + 9 =
2
47
|
19.
10 – 10 =
2
0
|
20.
48 – 10 =
2
38
|
1.
7 – 4 =
1
3
|
2.
25 + 3 =
2
28
|
3.
15 – 3 =
12
1
|
4.
50 – 24 =
26
2
|
5.
45 + 2 =
47
2
|
6.
23 + 8 =
2
31
|
7.
31 – 10 =
21
2
|
8.
6 – 4 =
1
2
|
9.
12 – 5 =
7
1
|
10.
17 – 4 =
1
13
|
11.
22 – 3 =
19
2
|
12.
15 + 11 =
2
26
|
13.
37 – 20 =
17
2
|
14.
8 – 8 =
0
2
|
15.
32 – 4 =
28
2
|
16.
14 – 4 =
1
10
|
17.
2 – 0 =
1
2
|
18.
38 + 9 =
2
47
|
19.
10 – 10 =
2
0
|
20.
48 – 10 =
2
38
|