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