|
1.
20 – 1 =
19
4
2
3
|
2.
3 + 10 =
3
13
1
2
|
3.
45 – 38 =
7
1
2
3
|
4.
31 + 1 =
4
2
32
3
|
|
5.
36 – 8 =
28
4
3
2
|
6.
13 + 12 =
4
25
3
2
|
7.
16 + 11 =
27
4
3
2
|
8.
2 + 39 =
41
4
3
2
|
|
9.
47 – 17 =
3
4
2
30
|
10.
6 – 6 =
0
2
3
4
|
11.
10 – 1 =
9
3
2
1
|
12.
29 – 28 =
3
2
1
4
|
|
13.
15 + 28 =
2
4
3
43
|
14.
43 + 1 =
2
44
4
3
|
15.
8 + 37 =
2
3
4
45
|
16.
17 – 10 =
1
2
3
7
|
|
17.
35 + 6 =
3
41
2
4
|
18.
47 + 0 =
3
2
47
4
|
19.
4 + 10 =
1
2
14
3
|
20.
24 + 10 =
3
2
34
4
|
|
1.
20 – 1 =
19
4
2
3
|
2.
3 + 10 =
3
13
1
2
|
3.
45 – 38 =
7
1
2
3
|
4.
31 + 1 =
4
2
32
3
|
|
5.
36 – 8 =
28
4
3
2
|
6.
13 + 12 =
4
25
3
2
|
7.
16 + 11 =
27
4
3
2
|
8.
2 + 39 =
41
4
3
2
|
|
9.
47 – 17 =
3
4
2
30
|
10.
6 – 6 =
0
2
3
4
|
11.
10 – 1 =
9
3
2
1
|
12.
29 – 28 =
3
2
1
4
|
|
13.
15 + 28 =
2
4
3
43
|
14.
43 + 1 =
2
44
4
3
|
15.
8 + 37 =
2
3
4
45
|
16.
17 – 10 =
1
2
3
7
|
|
17.
35 + 6 =
3
41
2
4
|
18.
47 + 0 =
3
2
47
4
|
19.
4 + 10 =
1
2
14
3
|
20.
24 + 10 =
3
2
34
4
|