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