Reken de erbijsom tot 50 uit

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

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