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