Oefen de erafsommen tot 100

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

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