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