1.
21 + 27 =
2
48
4
3
|
2.
30 + 7 =
37
3
2
4
|
3.
4 – 4 =
3
4
2
0
|
4.
44 + 1 =
3
4
2
45
|
5.
30 – 23 =
2
1
3
7
|
6.
44 + 6 =
50
4
2
3
|
7.
10 + 10 =
3
2
4
20
|
8.
22 – 17 =
3
5
2
1
|
9.
2 + 46 =
3
2
4
48
|
10.
23 + 10 =
3
33
4
2
|
11.
12 – 11 =
4
1
3
2
|
12.
32 + 1 =
2
3
33
4
|
13.
28 – 3 =
3
4
25
2
|
14.
32 + 0 =
2
32
3
4
|
15.
38 – 22 =
3
16
2
4
|
16.
31 + 11 =
42
2
4
3
|
17.
6 + 30 =
2
4
3
36
|
18.
36 + 1 =
37
3
2
4
|
19.
26 + 14 =
4
2
3
40
|
20.
6 + 3 =
2
1
9
3
|
1.
21 + 27 =
2
48
4
3
|
2.
30 + 7 =
37
3
2
4
|
3.
4 – 4 =
3
4
2
0
|
4.
44 + 1 =
3
4
2
45
|
5.
30 – 23 =
2
1
3
7
|
6.
44 + 6 =
50
4
2
3
|
7.
10 + 10 =
3
2
4
20
|
8.
22 – 17 =
3
5
2
1
|
9.
2 + 46 =
3
2
4
48
|
10.
23 + 10 =
3
33
4
2
|
11.
12 – 11 =
4
1
3
2
|
12.
32 + 1 =
2
3
33
4
|
13.
28 – 3 =
3
4
25
2
|
14.
32 + 0 =
2
32
3
4
|
15.
38 – 22 =
3
16
2
4
|
16.
31 + 11 =
42
2
4
3
|
17.
6 + 30 =
2
4
3
36
|
18.
36 + 1 =
37
3
2
4
|
19.
26 + 14 =
4
2
3
40
|
20.
6 + 3 =
2
1
9
3
|