Oefen de erbijsommen tot 50

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

Oefen de erbijsommen tot 50
| ANTWOORDEN

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