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