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