Reken de erbijsom tot 50 uit

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

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