|
1.
15 – 2 =
1
13
|
2.
10 – 6 =
1
4
|
3.
38 – 33 =
1
5
|
4.
15 + 4 =
2
19
|
|
5.
36 + 2 =
38
2
|
6.
24 – 7 =
2
17
|
7.
21 – 21 =
2
0
|
8.
30 + 18 =
2
48
|
|
9.
29 – 27 =
2
1
|
10.
4 – 2 =
2
1
|
11.
13 – 11 =
1
2
|
12.
17 + 23 =
2
40
|
|
13.
6 + 16 =
22
2
|
14.
23 + 21 =
2
44
|
15.
2 – 2 =
0
2
|
16.
22 – 7 =
1
15
|
|
17.
20 + 5 =
2
25
|
18.
24 – 10 =
1
14
|
19.
44 + 0 =
44
2
|
20.
30 + 11 =
41
2
|
|
1.
15 – 2 =
1
13
|
2.
10 – 6 =
1
4
|
3.
38 – 33 =
1
5
|
4.
15 + 4 =
2
19
|
|
5.
36 + 2 =
38
2
|
6.
24 – 7 =
2
17
|
7.
21 – 21 =
2
0
|
8.
30 + 18 =
2
48
|
|
9.
29 – 27 =
2
1
|
10.
4 – 2 =
2
1
|
11.
13 – 11 =
1
2
|
12.
17 + 23 =
2
40
|
|
13.
6 + 16 =
22
2
|
14.
23 + 21 =
2
44
|
15.
2 – 2 =
0
2
|
16.
22 – 7 =
1
15
|
|
17.
20 + 5 =
2
25
|
18.
24 – 10 =
1
14
|
19.
44 + 0 =
44
2
|
20.
30 + 11 =
41
2
|