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