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