|
1.
2 – 1 =
2
1
|
2.
50 – 29 =
2
21
|
3.
31 + 6 =
2
37
|
4.
9 + 31 =
40
2
|
|
5.
46 – 5 =
2
41
|
6.
16 – 7 =
1
9
|
7.
32 – 4 =
28
2
|
8.
24 – 19 =
1
5
|
|
9.
45 + 3 =
2
48
|
10.
47 – 24 =
23
2
|
11.
27 – 24 =
1
3
|
12.
16 – 5 =
1
11
|
|
13.
38 – 19 =
19
2
|
14.
16 + 30 =
46
2
|
15.
6 – 1 =
1
5
|
16.
22 – 13 =
1
9
|
|
17.
24 – 20 =
4
1
|
18.
4 – 2 =
2
1
|
19.
18 + 12 =
2
30
|
20.
20 – 20 =
0
2
|
|
1.
2 – 1 =
2
1
|
2.
50 – 29 =
2
21
|
3.
31 + 6 =
2
37
|
4.
9 + 31 =
40
2
|
|
5.
46 – 5 =
2
41
|
6.
16 – 7 =
1
9
|
7.
32 – 4 =
28
2
|
8.
24 – 19 =
1
5
|
|
9.
45 + 3 =
2
48
|
10.
47 – 24 =
23
2
|
11.
27 – 24 =
1
3
|
12.
16 – 5 =
1
11
|
|
13.
38 – 19 =
19
2
|
14.
16 + 30 =
46
2
|
15.
6 – 1 =
1
5
|
16.
22 – 13 =
1
9
|
|
17.
24 – 20 =
4
1
|
18.
4 – 2 =
2
1
|
19.
18 + 12 =
2
30
|
20.
20 – 20 =
0
2
|