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