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