Maak de erbijsom tot 50

Erbijsommen
1.
30
+
20
=
2.
20
+
20
=
3.
30
+
0
=
4.
30
+
20
=
5.
35
+
15
=
6.
5
+
0
=
7.
35
+
5
=
8.
25
+
20
=
9.
30
+
0
=
10.
35
+
10
=
11.
30
+
0
=
12.
25
+
20
=
13.
20
+
5
=
14.
25
+
0
=
15.
35
+
15
=
16.
25
+
20
=
17.
10
+
5
=
18.
10
+
10
=
19.
15
+
5
=
20.
30
+
15
=
21.
40
+
5
=
22.
30
+
0
=
23.
50
+
0
=
24.
45
+
5
=
25.
30
+
15
=
26.
25
+
20
=
27.
30
+
0
=
28.
50
+
0
=
29.
20
+
15
=
30.
50
+
0
=
31.
20
+
15
=
32.
45
+
0
=
33.
25
+
20
=
34.
45
+
5
=
35.
40
+
10
=
36.
40
+
5
=
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Maak de erbijsom tot 50
| ANTWOORDEN

Erbijsommen
1.
30
+
20
=
50
2.
20
+
20
=
40
3.
30
+
0
=
30
4.
30
+
20
=
50
5.
35
+
15
=
50
6.
5
+
0
=
5
7.
35
+
5
=
40
8.
25
+
20
=
45
9.
30
+
0
=
30
10.
35
+
10
=
45
11.
30
+
0
=
30
12.
25
+
20
=
45
13.
20
+
5
=
25
14.
25
+
0
=
25
15.
35
+
15
=
50
16.
25
+
20
=
45
17.
10
+
5
=
15
18.
10
+
10
=
20
19.
15
+
5
=
20
20.
30
+
15
=
45
21.
40
+
5
=
45
22.
30
+
0
=
30
23.
50
+
0
=
50
24.
45
+
5
=
50
25.
30
+
15
=
45
26.
25
+
20
=
45
27.
30
+
0
=
30
28.
50
+
0
=
50
29.
20
+
15
=
35
30.
50
+
0
=
50
31.
20
+
15
=
35
32.
45
+
0
=
45
33.
25
+
20
=
45
34.
45
+
5
=
50
35.
40
+
10
=
50
36.
40
+
5
=
45
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen