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