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