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