Los de som tot 50 op

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

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