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