Rekensommen met eraf tot 50

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

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