Rekensommen met eraf tot 50

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

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