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