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