1.
42 + 4 =
2
46
|
2.
31 + 11 =
42
2
|
3.
33 – 32 =
1
2
|
4.
7 + 30 =
2
37
|
5.
19 – 13 =
1
6
|
6.
48 + 1 =
49
2
|
7.
7 – 2 =
1
5
|
8.
41 – 25 =
16
2
|
9.
14 – 13 =
1
2
|
10.
49 + 1 =
2
50
|
11.
41 + 3 =
2
44
|
12.
19 – 1 =
2
18
|
13.
13 – 2 =
1
11
|
14.
28 + 20 =
48
2
|
15.
8 – 6 =
1
2
|
16.
22 + 3 =
25
2
|
17.
6 + 18 =
24
2
|
18.
14 + 26 =
40
2
|
19.
48 – 48 =
2
0
|
20.
12 – 10 =
2
1
|
1.
42 + 4 =
2
46
|
2.
31 + 11 =
42
2
|
3.
33 – 32 =
1
2
|
4.
7 + 30 =
2
37
|
5.
19 – 13 =
1
6
|
6.
48 + 1 =
49
2
|
7.
7 – 2 =
1
5
|
8.
41 – 25 =
16
2
|
9.
14 – 13 =
1
2
|
10.
49 + 1 =
2
50
|
11.
41 + 3 =
2
44
|
12.
19 – 1 =
2
18
|
13.
13 – 2 =
1
11
|
14.
28 + 20 =
48
2
|
15.
8 – 6 =
1
2
|
16.
22 + 3 =
25
2
|
17.
6 + 18 =
24
2
|
18.
14 + 26 =
40
2
|
19.
48 – 48 =
2
0
|
20.
12 – 10 =
2
1
|