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