|
1.
17 – 5 =
1
12
|
2.
4 + 31 =
35
2
|
3.
46 – 19 =
27
2
|
4.
12 – 1 =
1
11
|
|
5.
30 + 15 =
45
2
|
6.
1 – 1 =
2
0
|
7.
43 + 7 =
2
50
|
8.
12 + 7 =
19
2
|
|
9.
37 – 17 =
20
2
|
10.
23 + 2 =
25
2
|
11.
12 – 7 =
5
1
|
12.
38 + 0 =
38
2
|
|
13.
18 – 16 =
1
2
|
14.
44 – 18 =
2
26
|
15.
44 – 14 =
30
2
|
16.
31 – 2 =
29
2
|
|
17.
23 – 13 =
10
1
|
18.
48 – 42 =
6
1
|
19.
44 – 17 =
27
2
|
20.
43 + 5 =
2
48
|
|
1.
17 – 5 =
1
12
|
2.
4 + 31 =
35
2
|
3.
46 – 19 =
27
2
|
4.
12 – 1 =
1
11
|
|
5.
30 + 15 =
45
2
|
6.
1 – 1 =
2
0
|
7.
43 + 7 =
2
50
|
8.
12 + 7 =
19
2
|
|
9.
37 – 17 =
20
2
|
10.
23 + 2 =
25
2
|
11.
12 – 7 =
5
1
|
12.
38 + 0 =
38
2
|
|
13.
18 – 16 =
1
2
|
14.
44 – 18 =
2
26
|
15.
44 – 14 =
30
2
|
16.
31 – 2 =
29
2
|
|
17.
23 – 13 =
10
1
|
18.
48 – 42 =
6
1
|
19.
44 – 17 =
27
2
|
20.
43 + 5 =
2
48
|