Supersnelle sommen tot 50

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

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