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