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