Oefen de erafsommen tot 100

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

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