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