Supersnelle sommen tot 50

Erbijsommen
1.
30
+
10
=
25
40
20
35
2.
20
+
15
=
30
40
35
25
3.
30
+
5
=
40
30
35
25
4.
40
+
5
=
25
45
40
30
5.
45
+
0
=
25
45
40
30
6.
30
+
15
=
25
30
35
45
7.
45
+
0
=
25
35
30
45
8.
15
+
10
=
25
35
30
15
9.
30
+
15
=
30
25
45
40
10.
25
+
15
=
20
35
25
40
11.
35
+
15
=
30
35
50
40
12.
35
+
5
=
20
35
40
30
13.
20
+
20
=
40
35
20
25
14.
35
+
0
=
25
40
35
30
15.
40
+
0
=
25
40
35
20
16.
40
+
0
=
30
25
40
35
17.
30
+
0
=
35
25
20
30
18.
30
+
20
=
30
40
35
50
19.
50
+
0
=
50
40
45
35
20.
30
+
5
=
35
40
45
25
21.
25
+
5
=
35
30
20
25
© JuniorEinstein.nl
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Supersnelle sommen tot 50
| ANTWOORDEN

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