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