Oefen de erbijsommen tot 50

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

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