Supersnelle sommen tot 50

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

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