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