1.
8 – 4 =
2
1
3
4
|
2.
7 – 1 =
6
11
8
7
|
3.
12 – 11 =
4
3
1
5
|
4.
19 – 2 =
22
11
12
17
|
5.
20 – 3 =
20
18
19
17
|
6.
1 – 1 =
3
2
5
0
|
7.
1 – 0 =
3
6
1
5
|
8.
3 – 1 =
2
5
3
6
|
9.
18 – 14 =
2
3
4
6
|
10.
18 – 0 =
6
7
12
18
|
11.
8 – 4 =
1
7
5
4
|
12.
2 – 0 =
7
1
2
5
|
13.
16 – 2 =
14
9
1
17
|
14.
7 – 3 =
4
6
2
7
|
15.
18 – 15 =
8
2
4
3
|
16.
12 – 3 =
6
11
3
9
|
17.
5 – 3 =
2
4
7
6
|
18.
16 – 5 =
3
16
11
6
|
19.
17 – 0 =
6
17
12
8
|
20.
2 – 2 =
4
2
0
1
|
1.
8 – 4 =
2
1
3
4
|
2.
7 – 1 =
6
11
8
7
|
3.
12 – 11 =
4
3
1
5
|
4.
19 – 2 =
22
11
12
17
|
5.
20 – 3 =
20
18
19
17
|
6.
1 – 1 =
3
2
5
0
|
7.
1 – 0 =
3
6
1
5
|
8.
3 – 1 =
2
5
3
6
|
9.
18 – 14 =
2
3
4
6
|
10.
18 – 0 =
6
7
12
18
|
11.
8 – 4 =
1
7
5
4
|
12.
2 – 0 =
7
1
2
5
|
13.
16 – 2 =
14
9
1
17
|
14.
7 – 3 =
4
6
2
7
|
15.
18 – 15 =
8
2
4
3
|
16.
12 – 3 =
6
11
3
9
|
17.
5 – 3 =
2
4
7
6
|
18.
16 – 5 =
3
16
11
6
|
19.
17 – 0 =
6
17
12
8
|
20.
2 – 2 =
4
2
0
1
|