Supersnelle sommen tot 20
Erbijsommen
|
1.
12 + 4 =
16
10
9
2
|
2.
20 + 0 =
20
10
5
3
|
3.
6 + 5 =
13
14
11
3
|
4.
16 + 0 =
5
1
10
16
|
|
5.
8 + 7 =
15
3
6
10
|
6.
13 + 4 =
2
3
17
4
|
7.
14 + 1 =
8
15
1
3
|
8.
15 + 5 =
5
20
4
3
|
|
9.
4 + 4 =
6
8
1
5
|
10.
14 + 4 =
13
1
10
18
|
11.
19 + 0 =
6
2
7
19
|
12.
4 + 11 =
4
3
1
15
|
|
13.
17 + 2 =
11
19
14
10
|
14.
7 + 5 =
17
12
2
9
|
15.
20 + 0 =
10
12
20
11
|
16.
13 + 4 =
10
9
7
17
|
|
17.
12 + 7 =
19
9
2
3
|
18.
4 + 6 =
2
11
10
4
|
19.
19 + 0 =
7
14
19
10
|
20.
6 + 3 =
12
9
7
11
|