|
1.
20 + 20 =
4
40
2
3
|
2.
37 + 9 =
46
4
2
3
|
3.
35 – 7 =
2
4
3
28
|
4.
11 + 6 =
2
17
4
3
|
|
5.
15 + 6 =
21
4
3
2
|
6.
8 + 12 =
3
4
20
2
|
7.
16 + 13 =
4
3
2
29
|
8.
17 + 8 =
2
25
4
3
|
|
9.
33 – 31 =
4
1
3
2
|
10.
28 – 5 =
2
4
23
3
|
11.
45 + 2 =
4
47
2
3
|
12.
45 + 4 =
4
2
3
49
|
|
13.
39 – 12 =
3
27
4
2
|
14.
42 – 30 =
12
3
2
1
|
15.
41 – 13 =
4
2
28
3
|
16.
39 + 10 =
3
2
49
4
|
|
17.
12 – 9 =
4
3
2
1
|
18.
44 – 2 =
4
2
3
42
|
19.
23 – 14 =
3
9
2
1
|
20.
27 – 10 =
4
2
17
3
|
|
1.
20 + 20 =
4
40
2
3
|
2.
37 + 9 =
46
4
2
3
|
3.
35 – 7 =
2
4
3
28
|
4.
11 + 6 =
2
17
4
3
|
|
5.
15 + 6 =
21
4
3
2
|
6.
8 + 12 =
3
4
20
2
|
7.
16 + 13 =
4
3
2
29
|
8.
17 + 8 =
2
25
4
3
|
|
9.
33 – 31 =
4
1
3
2
|
10.
28 – 5 =
2
4
23
3
|
11.
45 + 2 =
4
47
2
3
|
12.
45 + 4 =
4
2
3
49
|
|
13.
39 – 12 =
3
27
4
2
|
14.
42 – 30 =
12
3
2
1
|
15.
41 – 13 =
4
2
28
3
|
16.
39 + 10 =
3
2
49
4
|
|
17.
12 – 9 =
4
3
2
1
|
18.
44 – 2 =
4
2
3
42
|
19.
23 – 14 =
3
9
2
1
|
20.
27 – 10 =
4
2
17
3
|