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