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