|
1.
18 – 11 =
2
12
10
7
|
2.
20 – 2 =
18
13
21
17
|
3.
8 – 6 =
7
5
4
2
|
4.
6 – 3 =
3
2
7
8
|
|
5.
4 – 3 =
3
4
5
1
|
6.
9 – 2 =
8
7
4
9
|
7.
12 – 5 =
8
1
9
7
|
8.
17 – 14 =
7
8
3
2
|
|
9.
8 – 8 =
3
4
2
0
|
10.
17 – 3 =
14
17
19
12
|
11.
20 – 12 =
2
6
10
8
|
12.
8 – 2 =
3
5
6
9
|
|
13.
20 – 10 =
7
11
10
6
|
14.
7 – 6 =
1
4
2
5
|
15.
5 – 3 =
6
5
4
2
|
16.
17 – 7 =
6
10
13
1
|
|
17.
19 – 17 =
1
3
2
6
|
18.
9 – 7 =
2
4
5
3
|
19.
11 – 4 =
7
5
2
12
|
20.
16 – 16 =
0
5
1
4
|
|
1.
18 – 11 =
2
12
10
7
|
2.
20 – 2 =
18
13
21
17
|
3.
8 – 6 =
7
5
4
2
|
4.
6 – 3 =
3
2
7
8
|
|
5.
4 – 3 =
3
4
5
1
|
6.
9 – 2 =
8
7
4
9
|
7.
12 – 5 =
8
1
9
7
|
8.
17 – 14 =
7
8
3
2
|
|
9.
8 – 8 =
3
4
2
0
|
10.
17 – 3 =
14
17
19
12
|
11.
20 – 12 =
2
6
10
8
|
12.
8 – 2 =
3
5
6
9
|
|
13.
20 – 10 =
7
11
10
6
|
14.
7 – 6 =
1
4
2
5
|
15.
5 – 3 =
6
5
4
2
|
16.
17 – 7 =
6
10
13
1
|
|
17.
19 – 17 =
1
3
2
6
|
18.
9 – 7 =
2
4
5
3
|
19.
11 – 4 =
7
5
2
12
|
20.
16 – 16 =
0
5
1
4
|