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