|
1.
21 – 19 =
1
2
|
2.
44 – 25 =
2
19
|
3.
28 – 4 =
2
24
|
4.
13 + 24 =
37
2
|
|
5.
12 + 12 =
24
2
|
6.
4 – 3 =
1
2
|
7.
4 – 3 =
2
1
|
8.
50 – 24 =
26
2
|
|
9.
50 – 37 =
1
13
|
10.
11 – 7 =
4
1
|
11.
36 + 10 =
2
46
|
12.
7 + 22 =
29
2
|
|
13.
40 + 1 =
2
41
|
14.
4 + 16 =
2
20
|
15.
41 – 10 =
31
2
|
16.
26 – 18 =
1
8
|
|
17.
6 – 4 =
1
2
|
18.
9 – 1 =
8
1
|
19.
14 – 12 =
1
2
|
20.
6 – 4 =
2
1
|
|
1.
21 – 19 =
1
2
|
2.
44 – 25 =
2
19
|
3.
28 – 4 =
2
24
|
4.
13 + 24 =
37
2
|
|
5.
12 + 12 =
24
2
|
6.
4 – 3 =
1
2
|
7.
4 – 3 =
2
1
|
8.
50 – 24 =
26
2
|
|
9.
50 – 37 =
1
13
|
10.
11 – 7 =
4
1
|
11.
36 + 10 =
2
46
|
12.
7 + 22 =
29
2
|
|
13.
40 + 1 =
2
41
|
14.
4 + 16 =
2
20
|
15.
41 – 10 =
31
2
|
16.
26 – 18 =
1
8
|
|
17.
6 – 4 =
1
2
|
18.
9 – 1 =
8
1
|
19.
14 – 12 =
1
2
|
20.
6 – 4 =
2
1
|