Maak de erbijsom tot 50

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

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