Supersnelle sommen tot 50

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

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