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