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