Maak de erbijsom tot 50

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

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