Rekensommen met eraf tot 50

Erafsommen
1.
35
–
25
=
2.
50
–
45
=
3.
25
–
15
=
4.
10
–
10
=
5.
30
–
10
=
6.
35
–
0
=
7.
45
–
0
=
8.
50
–
25
=
9.
45
–
15
=
10.
35
–
30
=
11.
25
–
25
=
12.
5
–
5
=
13.
30
–
10
=
14.
5
–
5
=
15.
5
–
0
=
16.
20
–
0
=
17.
45
–
15
=
18.
20
–
0
=
19.
20
–
0
=
20.
50
–
5
=
21.
10
–
0
=
22.
25
–
15
=
23.
40
–
40
=
24.
50
–
25
=
25.
40
–
5
=
26.
45
–
35
=
27.
50
–
25
=
28.
20
–
5
=
29.
35
–
15
=
30.
20
–
10
=
31.
20
–
5
=
32.
25
–
15
=
33.
25
–
15
=
34.
30
–
5
=
35.
35
–
5
=
36.
45
–
35
=
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Rekensommen met eraf tot 50
| ANTWOORDEN

Erafsommen
1.
35
–
25
=
10
2.
50
–
45
=
5
3.
25
–
15
=
10
4.
10
–
10
=
0
5.
30
–
10
=
20
6.
35
–
0
=
35
7.
45
–
0
=
45
8.
50
–
25
=
25
9.
45
–
15
=
30
10.
35
–
30
=
5
11.
25
–
25
=
0
12.
5
–
5
=
0
13.
30
–
10
=
20
14.
5
–
5
=
0
15.
5
–
0
=
5
16.
20
–
0
=
20
17.
45
–
15
=
30
18.
20
–
0
=
20
19.
20
–
0
=
20
20.
50
–
5
=
45
21.
10
–
0
=
10
22.
25
–
15
=
10
23.
40
–
40
=
0
24.
50
–
25
=
25
25.
40
–
5
=
35
26.
45
–
35
=
10
27.
50
–
25
=
25
28.
20
–
5
=
15
29.
35
–
15
=
20
30.
20
–
10
=
10
31.
20
–
5
=
15
32.
25
–
15
=
10
33.
25
–
15
=
10
34.
30
–
5
=
25
35.
35
–
5
=
30
36.
45
–
35
=
10
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen