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