Supersnelle sommen tot 50

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

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