Reken de erbijsom tot 50 uit

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

Reken de erbijsom tot 50 uit
| ANTWOORDEN

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