Erafsommen tot 20
Erafsommen
|
1.
7 – 7 =
5
0
|
2.
8 – 2 =
6
11
|
3.
3 – 1 =
2
4
|
4.
18 – 4 =
7
14
|
|
5.
10 – 1 =
9
1
|
6.
16 – 16 =
0
5
|
7.
14 – 11 =
1
3
|
8.
14 – 2 =
9
12
|
|
9.
7 – 5 =
6
2
|
10.
10 – 0 =
4
10
|
11.
5 – 1 =
4
3
|
12.
16 – 11 =
1
5
|
|
13.
16 – 9 =
7
8
|
14.
14 – 5 =
9
5
|
15.
19 – 3 =
16
21
|
16.
13 – 8 =
5
8
|
|
17.
2 – 2 =
3
0
|
18.
7 – 6 =
1
6
|
19.
5 – 5 =
0
1
|
20.
2 – 0 =
2
3
|