Oefen de erafsommen tot 100

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

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