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