Rekensommen met eraf tot 100

Erafsommen
1.
10
–
0
=
2.
25
–
15
=
3.
40
–
10
=
4.
55
–
0
=
5.
20
–
15
=
6.
45
–
40
=
7.
80
–
60
=
8.
65
–
50
=
9.
65
–
25
=
10.
45
–
10
=
11.
75
–
20
=
12.
75
–
55
=
13.
75
–
70
=
14.
90
–
40
=
15.
70
–
50
=
16.
5
–
5
=
17.
100
–
10
=
18.
35
–
15
=
19.
55
–
30
=
20.
20
–
15
=
21.
90
–
5
=
22.
40
–
20
=
23.
10
–
5
=
24.
85
–
80
=
25.
85
–
25
=
26.
100
–
45
=
27.
50
–
10
=
28.
70
–
50
=
29.
65
–
50
=
30.
40
–
40
=
31.
75
–
5
=
32.
100
–
50
=
33.
5
–
0
=
34.
75
–
0
=
35.
45
–
10
=
36.
30
–
30
=
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Rekensommen met eraf tot 100
| ANTWOORDEN

Erafsommen
1.
10
–
0
=
10
2.
25
–
15
=
10
3.
40
–
10
=
30
4.
55
–
0
=
55
5.
20
–
15
=
5
6.
45
–
40
=
5
7.
80
–
60
=
20
8.
65
–
50
=
15
9.
65
–
25
=
40
10.
45
–
10
=
35
11.
75
–
20
=
55
12.
75
–
55
=
20
13.
75
–
70
=
5
14.
90
–
40
=
50
15.
70
–
50
=
20
16.
5
–
5
=
0
17.
100
–
10
=
90
18.
35
–
15
=
20
19.
55
–
30
=
25
20.
20
–
15
=
5
21.
90
–
5
=
85
22.
40
–
20
=
20
23.
10
–
5
=
5
24.
85
–
80
=
5
25.
85
–
25
=
60
26.
100
–
45
=
55
27.
50
–
10
=
40
28.
70
–
50
=
20
29.
65
–
50
=
15
30.
40
–
40
=
0
31.
75
–
5
=
70
32.
100
–
50
=
50
33.
5
–
0
=
5
34.
75
–
0
=
75
35.
45
–
10
=
35
36.
30
–
30
=
0
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen