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