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