Los de erbijsom tot 50 op

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

Los de erbijsom tot 50 op
| ANTWOORDEN

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