1.
3 – 2 =
1
4
2
3
|
2.
45 – 14 =
31
3
4
2
|
3.
32 – 15 =
2
4
17
3
|
4.
32 + 6 =
4
3
38
2
|
5.
16 + 16 =
32
3
4
2
|
6.
21 + 12 =
3
2
33
4
|
7.
31 – 2 =
29
2
3
4
|
8.
35 + 2 =
2
3
37
4
|
9.
6 + 6 =
12
1
3
2
|
10.
36 – 32 =
3
4
1
2
|
11.
20 – 18 =
4
1
3
2
|
12.
32 – 28 =
1
2
3
4
|
13.
15 + 15 =
3
2
4
30
|
14.
8 – 1 =
3
2
1
7
|
15.
46 + 2 =
2
4
48
3
|
16.
18 – 17 =
2
1
4
3
|
17.
42 + 2 =
4
3
44
2
|
18.
36 – 9 =
2
4
3
27
|
19.
20 – 18 =
2
4
3
1
|
20.
10 + 36 =
4
2
46
3
|
1.
3 – 2 =
1
4
2
3
|
2.
45 – 14 =
31
3
4
2
|
3.
32 – 15 =
2
4
17
3
|
4.
32 + 6 =
4
3
38
2
|
5.
16 + 16 =
32
3
4
2
|
6.
21 + 12 =
3
2
33
4
|
7.
31 – 2 =
29
2
3
4
|
8.
35 + 2 =
2
3
37
4
|
9.
6 + 6 =
12
1
3
2
|
10.
36 – 32 =
3
4
1
2
|
11.
20 – 18 =
4
1
3
2
|
12.
32 – 28 =
1
2
3
4
|
13.
15 + 15 =
3
2
4
30
|
14.
8 – 1 =
3
2
1
7
|
15.
46 + 2 =
2
4
48
3
|
16.
18 – 17 =
2
1
4
3
|
17.
42 + 2 =
4
3
44
2
|
18.
36 – 9 =
2
4
3
27
|
19.
20 – 18 =
2
4
3
1
|
20.
10 + 36 =
4
2
46
3
|