Rekensommen met eraf tot 100

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

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