Supersnelle sommen tot 50

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

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