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