Oefen de erbijsommen tot 50

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

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