Reken de erbijsom tot 50 uit

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

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