|
1.
28 – 11 =
20
17
|
2.
23 – 12 =
12
11
|
3.
27 – 18 =
9
5
|
4.
34 – 32 =
1
2
|
|
5.
43 – 10 =
33
12
|
6.
47 – 31 =
4
16
|
7.
11 – 10 =
2
1
|
8.
6 – 5 =
4
1
|
|
9.
23 – 12 =
11
2
|
10.
50 – 1 =
22
49
|
11.
23 – 21 =
5
2
|
12.
33 – 20 =
7
13
|
|
13.
32 – 14 =
18
6
|
14.
16 – 1 =
17
15
|
15.
40 – 32 =
3
8
|
16.
48 – 46 =
2
3
|
|
17.
9 – 3 =
11
6
|
18.
19 – 2 =
17
16
|
19.
11 – 4 =
8
7
|
20.
33 – 11 =
22
5
|
|
1.
28 – 11 =
20
17
|
2.
23 – 12 =
12
11
|
3.
27 – 18 =
9
5
|
4.
34 – 32 =
1
2
|
|
5.
43 – 10 =
33
12
|
6.
47 – 31 =
4
16
|
7.
11 – 10 =
2
1
|
8.
6 – 5 =
4
1
|
|
9.
23 – 12 =
11
2
|
10.
50 – 1 =
22
49
|
11.
23 – 21 =
5
2
|
12.
33 – 20 =
7
13
|
|
13.
32 – 14 =
18
6
|
14.
16 – 1 =
17
15
|
15.
40 – 32 =
3
8
|
16.
48 – 46 =
2
3
|
|
17.
9 – 3 =
11
6
|
18.
19 – 2 =
17
16
|
19.
11 – 4 =
8
7
|
20.
33 – 11 =
22
5
|