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