Supersnelle sommen tot 50

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

Supersnelle sommen tot 50
| ANTWOORDEN

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