Rekensommen met eraf tot 50

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

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