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