Oefen de erafsommen tot 100

Erafsommen
1.
50
–
45
=
2.
65
–
45
=
3.
20
–
15
=
4.
25
–
15
=
5.
90
–
35
=
6.
35
–
35
=
7.
55
–
55
=
8.
100
–
35
=
9.
20
–
0
=
10.
15
–
10
=
11.
85
–
15
=
12.
10
–
5
=
13.
75
–
5
=
14.
40
–
30
=
15.
100
–
45
=
16.
25
–
5
=
17.
40
–
40
=
18.
80
–
15
=
19.
90
–
85
=
20.
85
–
80
=
21.
75
–
45
=
22.
95
–
45
=
23.
100
–
60
=
24.
65
–
0
=
25.
30
–
5
=
26.
45
–
25
=
27.
65
–
35
=
28.
75
–
60
=
29.
35
–
10
=
30.
50
–
25
=
31.
15
–
10
=
32.
50
–
5
=
33.
30
–
0
=
34.
45
–
30
=
35.
80
–
70
=
36.
30
–
30
=
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Oefen de erafsommen tot 100
| ANTWOORDEN

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