Oefen de erbijsommen tot 50

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

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