Maak de erbijsom en erafsom tot 20
In de mix
|
1.
2 – 0 =
2
1
|
2.
10 + 1 =
1
11
|
3.
16 – 1 =
15
1
|
4.
13 + 1 =
14
1
|
|
5.
10 + 6 =
16
2
|
6.
6 – 4 =
2
1
|
7.
7 + 5 =
12
1
|
8.
17 – 10 =
7
1
|
|
9.
5 – 0 =
1
5
|
10.
9 + 1 =
10
1
|
11.
13 + 2 =
15
1
|
12.
14 – 1 =
13
1
|
|
13.
19 – 11 =
1
8
|
14.
13 + 3 =
2
16
|
15.
9 + 2 =
1
11
|
16.
16 – 2 =
1
14
|
|
17.
9 + 1 =
1
10
|
18.
16 + 4 =
2
20
|
19.
3 + 3 =
1
6
|
20.
17 + 3 =
20
2
|