Reken de erbijsom tot 50 uit

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

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