Rekensommen met eraf tot 100

Erafsommen
1.
75
–
70
=
2.
60
–
0
=
3.
25
–
0
=
4.
35
–
10
=
5.
70
–
65
=
6.
60
–
60
=
7.
25
–
10
=
8.
60
–
10
=
9.
15
–
10
=
10.
10
–
10
=
11.
5
–
0
=
12.
45
–
10
=
13.
25
–
15
=
14.
55
–
5
=
15.
25
–
20
=
16.
40
–
35
=
17.
70
–
45
=
18.
15
–
5
=
19.
95
–
95
=
20.
50
–
25
=
21.
80
–
5
=
22.
90
–
25
=
23.
40
–
20
=
24.
80
–
15
=
25.
50
–
5
=
26.
45
–
30
=
27.
25
–
5
=
28.
70
–
0
=
29.
75
–
5
=
30.
40
–
40
=
31.
15
–
15
=
32.
50
–
40
=
33.
5
–
0
=
34.
15
–
15
=
35.
25
–
0
=
36.
5
–
5
=
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Rekensommen met eraf tot 100
| ANTWOORDEN

Erafsommen
1.
75
–
70
=
5
2.
60
–
0
=
60
3.
25
–
0
=
25
4.
35
–
10
=
25
5.
70
–
65
=
5
6.
60
–
60
=
0
7.
25
–
10
=
15
8.
60
–
10
=
50
9.
15
–
10
=
5
10.
10
–
10
=
0
11.
5
–
0
=
5
12.
45
–
10
=
35
13.
25
–
15
=
10
14.
55
–
5
=
50
15.
25
–
20
=
5
16.
40
–
35
=
5
17.
70
–
45
=
25
18.
15
–
5
=
10
19.
95
–
95
=
0
20.
50
–
25
=
25
21.
80
–
5
=
75
22.
90
–
25
=
65
23.
40
–
20
=
20
24.
80
–
15
=
65
25.
50
–
5
=
45
26.
45
–
30
=
15
27.
25
–
5
=
20
28.
70
–
0
=
70
29.
75
–
5
=
70
30.
40
–
40
=
0
31.
15
–
15
=
0
32.
50
–
40
=
10
33.
5
–
0
=
5
34.
15
–
15
=
0
35.
25
–
0
=
25
36.
5
–
5
=
0
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen