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