|
1.
12 – 1 =
11
1
|
2.
31 – 5 =
26
2
|
3.
24 + 23 =
47
2
|
4.
22 – 21 =
2
1
|
|
5.
25 – 5 =
20
2
|
6.
13 – 3 =
1
10
|
7.
1 – 1 =
2
0
|
8.
33 – 10 =
23
2
|
|
9.
14 – 11 =
1
3
|
10.
19 + 5 =
24
2
|
11.
1 + 9 =
10
1
|
12.
25 – 16 =
9
1
|
|
13.
45 – 16 =
29
2
|
14.
41 + 6 =
2
47
|
15.
33 – 19 =
1
14
|
16.
39 + 3 =
42
2
|
|
17.
42 + 8 =
50
2
|
18.
11 + 37 =
48
2
|
19.
33 + 6 =
39
2
|
20.
41 + 5 =
2
46
|
|
1.
12 – 1 =
11
1
|
2.
31 – 5 =
26
2
|
3.
24 + 23 =
47
2
|
4.
22 – 21 =
2
1
|
|
5.
25 – 5 =
20
2
|
6.
13 – 3 =
1
10
|
7.
1 – 1 =
2
0
|
8.
33 – 10 =
23
2
|
|
9.
14 – 11 =
1
3
|
10.
19 + 5 =
24
2
|
11.
1 + 9 =
10
1
|
12.
25 – 16 =
9
1
|
|
13.
45 – 16 =
29
2
|
14.
41 + 6 =
2
47
|
15.
33 – 19 =
1
14
|
16.
39 + 3 =
42
2
|
|
17.
42 + 8 =
50
2
|
18.
11 + 37 =
48
2
|
19.
33 + 6 =
39
2
|
20.
41 + 5 =
2
46
|