1.
27 + 17 =
44
2
|
2.
15 – 11 =
4
1
|
3.
40 – 2 =
38
2
|
4.
30 – 12 =
2
18
|
5.
32 – 16 =
16
2
|
6.
24 – 15 =
9
1
|
7.
7 – 0 =
1
7
|
8.
1 – 1 =
2
0
|
9.
16 – 6 =
10
1
|
10.
4 – 1 =
1
3
|
11.
14 + 10 =
24
2
|
12.
8 + 16 =
2
24
|
13.
33 + 2 =
35
2
|
14.
4 – 2 =
2
1
|
15.
35 + 11 =
46
2
|
16.
38 – 7 =
2
31
|
17.
11 – 10 =
1
2
|
18.
1 – 1 =
0
2
|
19.
31 – 8 =
23
2
|
20.
49 + 0 =
2
49
|
1.
27 + 17 =
44
2
|
2.
15 – 11 =
4
1
|
3.
40 – 2 =
38
2
|
4.
30 – 12 =
2
18
|
5.
32 – 16 =
16
2
|
6.
24 – 15 =
9
1
|
7.
7 – 0 =
1
7
|
8.
1 – 1 =
2
0
|
9.
16 – 6 =
10
1
|
10.
4 – 1 =
1
3
|
11.
14 + 10 =
24
2
|
12.
8 + 16 =
2
24
|
13.
33 + 2 =
35
2
|
14.
4 – 2 =
2
1
|
15.
35 + 11 =
46
2
|
16.
38 – 7 =
2
31
|
17.
11 – 10 =
1
2
|
18.
1 – 1 =
0
2
|
19.
31 – 8 =
23
2
|
20.
49 + 0 =
2
49
|