|
1.
12 – 1 =
1
11
|
2.
27 + 21 =
48
2
|
3.
17 + 27 =
44
2
|
4.
18 – 13 =
5
1
|
|
5.
24 – 6 =
2
18
|
6.
37 – 28 =
9
1
|
7.
11 + 32 =
2
43
|
8.
11 – 1 =
10
1
|
|
9.
41 – 10 =
2
31
|
10.
13 – 9 =
1
4
|
11.
7 + 40 =
2
47
|
12.
39 – 12 =
27
2
|
|
13.
22 + 21 =
2
43
|
14.
2 – 2 =
2
0
|
15.
10 + 26 =
2
36
|
16.
31 + 14 =
2
45
|
|
17.
32 + 0 =
2
32
|
18.
7 – 3 =
1
4
|
19.
44 + 1 =
2
45
|
20.
2 + 27 =
29
2
|
|
1.
12 – 1 =
1
11
|
2.
27 + 21 =
48
2
|
3.
17 + 27 =
44
2
|
4.
18 – 13 =
5
1
|
|
5.
24 – 6 =
2
18
|
6.
37 – 28 =
9
1
|
7.
11 + 32 =
2
43
|
8.
11 – 1 =
10
1
|
|
9.
41 – 10 =
2
31
|
10.
13 – 9 =
1
4
|
11.
7 + 40 =
2
47
|
12.
39 – 12 =
27
2
|
|
13.
22 + 21 =
2
43
|
14.
2 – 2 =
2
0
|
15.
10 + 26 =
2
36
|
16.
31 + 14 =
2
45
|
|
17.
32 + 0 =
2
32
|
18.
7 – 3 =
1
4
|
19.
44 + 1 =
2
45
|
20.
2 + 27 =
29
2
|