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