Supersnelle sommen tot 50

Erbijsommen
1.
35
+
5
=
20
30
40
25
2.
15
+
10
=
30
35
25
20
3.
30
+
20
=
45
35
50
40
4.
25
+
5
=
35
30
20
25
5.
50
+
0
=
35
40
30
50
6.
50
+
0
=
30
40
35
50
7.
25
+
15
=
30
40
25
20
8.
50
+
0
=
50
30
45
40
9.
35
+
10
=
25
30
35
45
10.
35
+
15
=
35
40
50
45
11.
40
+
10
=
45
30
35
50
12.
30
+
15
=
30
35
25
45
13.
40
+
5
=
40
30
45
25
14.
10
+
0
=
10
5
15
20
15.
45
+
5
=
45
50
30
35
16.
30
+
10
=
25
40
30
20
17.
35
+
0
=
35
40
45
25
18.
10
+
0
=
15
5
10
0
19.
20
+
15
=
40
45
25
35
20.
5
+
0
=
5
25
10
15
21.
25
+
20
=
25
45
40
30
© JuniorEinstein.nl
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Supersnelle sommen tot 50
| ANTWOORDEN

Erbijsommen
1.
35
+
5
=
20
30
40
25
2.
15
+
10
=
30
35
25
20
3.
30
+
20
=
45
35
50
40
4.
25
+
5
=
35
30
20
25
5.
50
+
0
=
35
40
30
50
6.
50
+
0
=
30
40
35
50
7.
25
+
15
=
30
40
25
20
8.
50
+
0
=
50
30
45
40
9.
35
+
10
=
25
30
35
45
10.
35
+
15
=
35
40
50
45
11.
40
+
10
=
45
30
35
50
12.
30
+
15
=
30
35
25
45
13.
40
+
5
=
40
30
45
25
14.
10
+
0
=
10
5
15
20
15.
45
+
5
=
45
50
30
35
16.
30
+
10
=
25
40
30
20
17.
35
+
0
=
35
40
45
25
18.
10
+
0
=
15
5
10
0
19.
20
+
15
=
40
45
25
35
20.
5
+
0
=
5
25
10
15
21.
25
+
20
=
25
45
40
30
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen