1.
7 – 1 =
2
1
3
6
|
2.
5 – 4 =
2
1
3
4
|
3.
50 + 0 =
4
2
3
50
|
4.
27 + 2 =
4
2
3
29
|
5.
41 – 31 =
3
1
2
10
|
6.
39 + 5 =
44
4
2
3
|
7.
46 – 21 =
25
3
2
4
|
8.
45 – 11 =
4
2
34
3
|
9.
30 + 4 =
3
34
2
4
|
10.
16 + 3 =
3
19
4
2
|
11.
13 + 32 =
2
45
4
3
|
12.
2 + 7 =
1
3
2
9
|
13.
29 – 17 =
2
12
1
3
|
14.
36 + 5 =
2
3
4
41
|
15.
4 – 4 =
4
3
2
0
|
16.
19 – 5 =
2
14
1
3
|
17.
20 + 7 =
4
27
3
2
|
18.
43 – 31 =
12
1
2
3
|
19.
6 – 2 =
3
1
2
4
|
20.
13 + 27 =
2
40
3
4
|
1.
7 – 1 =
2
1
3
6
|
2.
5 – 4 =
2
1
3
4
|
3.
50 + 0 =
4
2
3
50
|
4.
27 + 2 =
4
2
3
29
|
5.
41 – 31 =
3
1
2
10
|
6.
39 + 5 =
44
4
2
3
|
7.
46 – 21 =
25
3
2
4
|
8.
45 – 11 =
4
2
34
3
|
9.
30 + 4 =
3
34
2
4
|
10.
16 + 3 =
3
19
4
2
|
11.
13 + 32 =
2
45
4
3
|
12.
2 + 7 =
1
3
2
9
|
13.
29 – 17 =
2
12
1
3
|
14.
36 + 5 =
2
3
4
41
|
15.
4 – 4 =
4
3
2
0
|
16.
19 – 5 =
2
14
1
3
|
17.
20 + 7 =
4
27
3
2
|
18.
43 – 31 =
12
1
2
3
|
19.
6 – 2 =
3
1
2
4
|
20.
13 + 27 =
2
40
3
4
|