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