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