Supersnelle sommen tot 50

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

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