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