Maak de erbijsom tot 50

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

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