Reken de erbijsom tot 50 uit

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

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