Reken de erbijsom tot 50 uit

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

Reken de erbijsom tot 50 uit
| ANTWOORDEN

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