Reken de erbijsom tot 50 uit

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

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