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