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