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