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