Rekensommen met eraf tot 100

Erafsommen
1.
90
–
85
=
2.
55
–
55
=
3.
10
–
5
=
4.
60
–
30
=
5.
15
–
5
=
6.
90
–
40
=
7.
95
–
5
=
8.
60
–
50
=
9.
50
–
35
=
10.
45
–
40
=
11.
55
–
50
=
12.
65
–
10
=
13.
55
–
0
=
14.
60
–
30
=
15.
60
–
40
=
16.
55
–
10
=
17.
40
–
25
=
18.
50
–
0
=
19.
5
–
0
=
20.
65
–
65
=
21.
90
–
10
=
22.
100
–
5
=
23.
75
–
15
=
24.
85
–
55
=
25.
45
–
45
=
26.
55
–
15
=
27.
5
–
5
=
28.
55
–
55
=
29.
70
–
15
=
30.
40
–
35
=
31.
5
–
0
=
32.
75
–
55
=
33.
20
–
5
=
34.
90
–
75
=
35.
35
–
30
=
36.
70
–
40
=
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Rekensommen met eraf tot 100
| ANTWOORDEN

Erafsommen
1.
90
–
85
=
5
2.
55
–
55
=
0
3.
10
–
5
=
5
4.
60
–
30
=
30
5.
15
–
5
=
10
6.
90
–
40
=
50
7.
95
–
5
=
90
8.
60
–
50
=
10
9.
50
–
35
=
15
10.
45
–
40
=
5
11.
55
–
50
=
5
12.
65
–
10
=
55
13.
55
–
0
=
55
14.
60
–
30
=
30
15.
60
–
40
=
20
16.
55
–
10
=
45
17.
40
–
25
=
15
18.
50
–
0
=
50
19.
5
–
0
=
5
20.
65
–
65
=
0
21.
90
–
10
=
80
22.
100
–
5
=
95
23.
75
–
15
=
60
24.
85
–
55
=
30
25.
45
–
45
=
0
26.
55
–
15
=
40
27.
5
–
5
=
0
28.
55
–
55
=
0
29.
70
–
15
=
55
30.
40
–
35
=
5
31.
5
–
0
=
5
32.
75
–
55
=
20
33.
20
–
5
=
15
34.
90
–
75
=
15
35.
35
–
30
=
5
36.
70
–
40
=
30
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen