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