Los de som tot 50 op

Erbijsommen
1.
5
+
30
=
40
35
2.
0
+
50
=
50
35
3.
0
+
50
=
30
50
4.
0
+
45
=
45
40
5.
0
+
50
=
50
40
6.
45
+
0
=
35
45
7.
20
+
10
=
30
40
8.
35
+
0
=
40
35
9.
5
+
40
=
40
45
10.
0
+
50
=
35
50
11.
0
+
40
=
40
25
12.
10
+
35
=
35
45
13.
35
+
15
=
45
50
14.
15
+
5
=
30
20
15.
25
+
20
=
45
25
16.
5
+
40
=
30
45
17.
40
+
5
=
45
40
18.
45
+
0
=
30
45
19.
10
+
20
=
20
30
20.
40
+
5
=
45
25
21.
30
+
15
=
45
35
22.
0
+
50
=
50
40
23.
10
+
25
=
35
30
24.
25
+
20
=
30
45
25.
5
+
25
=
40
30
26.
15
+
25
=
40
25
27.
5
+
40
=
45
40
28.
15
+
35
=
50
30
© JuniorEinstein.nl
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Los de som tot 50 op
| ANTWOORDEN

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