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