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