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