Reken de erbijsom tot 50 uit

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

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