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